A History of Inventions, Discoveries, and Origins, Volume 2 (of 2) by Beckmann
370. A better view of them may be found in Hygini Astronom. (ed. Van
10167 words | Chapter 5
Staveren), xlii. p. 496.
[65] Jablonski, Panth. p. 55. Vossius de Idololatria, ii. 34, p. 489.
Bruckeri Histor. Philosoph. i. p. 1055.
[66] Origenes Contra Celsum, lib. vi. 22. I expected to have received
some explanation of this passage from the editors of Origen, and in
those authors who have treated expressly on the religious worship
of the Persians; but I find that they are quoted neither by Hyde;
Philip a Turre, whose Monumenta Veteris Antii is printed in Thesaurus
Antiquitat. et Histor. Italiæ; nor by Banier in his Mythology.
[67] Borrichius arranges the words in the following manner: “Secundam
portam faciunt Jovis, comparantes ei stanni splendorem et mollitiem;
tertiam Veneris æratam et solidam; quartam Martis, est enim laborum
patiens, æque ac ferrum, celebratus hominibus; quintam Mercurii propter
misturam inæqualem ac variam, et quia negotiator est; sextam Lunæ
argenteam; septimam Solis auream.”--Ol. Borrichius De Ortu et Progressu
Chemiæ.” Hafniæ, 1668, 4to, p. 29. Professor Eichhorn reminded me, as
allusive to this subject, of the seven walls of Ecbatana, the capital
of Media, the outermost of which was the lowest, and each of the rest
progressively higher, so that they overtopped each other. Each was of
a particular colour. The outermost was white; the second black; the
third purple; the fourth blue; the fifth red, or rather of an orange
colour; and the summit of the sixth was covered with silver, and that
of the seventh, or innermost, with gold. Such is the account given by
Herodotus, i. 98; and it appears to me not improbable that they may
have had a relation to the seven planets, though nothing is hinted on
that subject by the historian.
[68] Philostrat. Vita Apollonii, iii. 41, p. 130. How was the ring for
Wednesday made? Perhaps it was hollow, and filled with quicksilver.
Gesner, in Commentaria Societat. Scien. Gotting. 1753, iii. p. 78,
thinks that these rings might have been made or cast under certain
constellations.
[69] Oneirocritica, v. 37.
[70] Isthm. Od. ver. 1. Of the like kind are many passages in
Eustathius on Homer’s Iliad, b. xi., and also the following passages
of Constantinus Manasses, where he describes the creation of the
stars, in his Annales (edit. Meursii, Lugd. 1616), p. 7, and p. 263:
“Saturnus nigricabat, colore plumbeo; Jupiter ut argentum splendebat;
Mars flammeus conspiciebatur; Sol instar auri puri lucebat; (Venus
uti stannum;) Mercurius instar æris rubebat; Luna in morem glaciei
pellucida suam et ipsa lucem emittebat,” &c.
[71] In his Preface to Critias. Platonis Opera; Francof. 1602, fol. p.
1097.
[72] It is probable that Ficinus had in view a passage in Olympiodori
Commentar. in Meteora Arist. Ven. 1551, fol. lib. iii. p. 59.
[73] This distribution, which is ascribed to the Platonists, may be
found also in the scholiasts on Pindar, at the beginning of the fifth
Isthmian Ode, p. 459.
[74] Jablonski, Pantheon Ægypt. i. p. 282, 283, 287; and ii. p. 131.
This author makes it the representation of something which cannot be
well named. Kircheri Œdipus Ægypt. t. ii. pars ii. p. 399. Romæ, 1653,
fol.
[75] Goguet, ii. pp. 370, 371, considers them as remains of the
original hieroglyphics; but he is of opinion that we received them in
their present form from the Arabians.
[76] Plinianæ Exercitat. in Solinum, p. 874.
[77] Gloss. ad Script. Med. et Infimæ Græcitatis.
[78] In his Annotations on Manilii Astronomicon (in usum Delphini).
Par. 1679, 4to, p. 80.
[79] In his Annotations on Manilii Astron. Strasb. 1665, 4to, p. 460.
[80] In Gorii Thesaurus Gemmarum antiquarum astriferarum, Florent.
1750, 3 vols. fol., I found nothing on this subject. Characters of the
moon and of the signs in the zodiac often occur; but no others are to
be seen, except in tab. 33, where there is a ring, which has on it
the present characters of Mars and Venus. In general the planets are
represented by seven small asterisks, or by six and the character of
the moon. Besides, the antiquity of this gem cannot be ascertained.
[81] See the collection of Greek letters of Eilh. Lubbinus. Commelin.
1601, 8vo.
ZINC.
Zinc is one of those metals which were not known to the Greeks[82],
Romans, or Arabians. This we have reason to conjecture, because it
has not been distinguished by a chemical character like the rest; but
it is fully proved, by our not finding in the works of the ancients
any information that appears even to allude to it. I know but of one
instance where it is supposed to have been found among remains of
antiquity. Grignon pretends that something like it was discovered
in the ruins of the ancient Roman city in Champagne[83]. Such an
unexpected discovery deserved to have been investigated with the
utmost minuteness; but it seems to have been examined only in a very
superficial manner; and as that was the case, it is impossible to
guess what kind of a metal or metallic mixture this author considered
as zinc.
It is not surprising that this metal should have remained so long
unknown, for it has never yet been found in the metallic state. Its
ores are often and in a great degree mixed with foreign ingredients;
and when they are melted, it sublimes in a metallic form, and is found
adhering above to the cool sides of the furnace; but a particular
apparatus is necessary, else the reduced metal partly evaporates,
and is partly oxidized, by which means it appears like an earth, and
exhibits to the eye no traces of metal.
That mixture of zinc and copper called at present brass, tomback,
pinchbeck, princes-metal, &c., and which was first discovered by ores,
abundant in zinc, yielding when melted not pure copper, but brass,
was certainly known to the ancients. Mines that contained ores, from
which this gold-coloured metal was produced, were held in the highest
estimation; when exhausted, the loss of them was regretted; and it
was supposed that the metal would never be again found. In the course
of time it was remarked, no one knows by what accident, that an ore,
which must have been calamine, when added to copper while melting, gave
it a yellow colour. This ore was therefore used, though it was not
known what metal it contained, in the same manner as oxide of cobalt
was employed in colouring glass before mineralogists were acquainted
with that metal itself. Aristotle and Strabo speak of an earth of that
kind, the use of which in making brass has been retained through every
century. Ambrosius, bishop of Milan, in the fourth century; Primasius,
bishop of Adrumetum in Africa, in the sixth; and Isidore, bishop of
Seville, in the seventh, mention an addition by which copper acquired
a gold colour, and which undoubtedly must have been calamine. When in
course of time more calamine was discovered, the ancient method of
procuring brass from copper-ore that contained zinc was abandoned; and
it was found more convenient first to extract from it pure copper, and
then to convert it into brass by the addition of calamine.
Those desirous of inquiring further into the knowledge which the
ancients had of this metal must examine the meaning of the word
_cadmia_, which seems to have had various significations. This task I
have ventured to undertake; and though I cannot clear up everything
that occurs respecting it, I shall lay before my readers what
information I have been able to obtain on the subject, because perhaps
it may amount to somewhat more than is to be found in the works of old
commentators. _Cadmia_ signified, then, in the first place, a mineral
abounding in zinc, as well as any ore combined with it, and also that
zinc-earth which we call calamine. Those who should understand under
it only the latter, would not be able to explain the greater part of
the passages in the ancients where it is mentioned. It is probable
that ore containing zinc acquired this name, because it first produced
brass[84]. When it was afterwards remarked that calamine gave to copper
a yellow colour, the same name was conferred on it also. It appears,
however, that it was seldom found by the ancients[85]; and we must
consider _cadmia_ in general as signifying ore that contained zinc.
Gold-coloured copper or brass was long preferred to pure or common
copper, and thought to be more beautiful the nearer it approached to
the best _aurichalcum_. Brass therefore was supposed to be a more
valuable kind of copper; and on this account Pliny says that _cadmia_
was necessary for procuring copper, that is brass. Copper, as well as
brass, was for a great length of time called _æs_, and it was not till
a late period that mineralogists, in order to distinguish them, gave
the name of _cuprum_ to the former[86]. Pliny says that it was good
when a large quantity of _cadmia_ had been added to it, because it not
only rendered the colour more beautiful, but increased the weight. In
the like manner a quintal of copper in Hungary produces a hundred and
fifty pounds of brass. The same author remarks also that the _cadmia_
(_fossilis_) was not used in medicine: this however is to be understood
only of the raw ore, for some physicians prepared oxide of zinc from
ore that contained zinc, as he afterwards tells us; and Galen extols
the calamine found in Cyprus on account of its superior effects,
because, perhaps, the oxide could be obtained from it much purer.
In the second place, _cadmia_, among the ancients, was what we call
(_ofenbruch_) furnace-calamine, or what in melting ore that contains
zinc, or in making brass, falls to the bottom of the furnace, and
which consists of more or less calcined zinc. As this furnace-calamine
assumes various appearances, according to the manner of melting, and
according to many other circumstances that in part cannot be defined,
and as the ancients comprehend all its varieties under the general
name of _cadmia_, and give to each variety, according to its form,
consistence and colour, a particular name also, a confusion of names
has hence arisen which cannot now be cleared up, especially as it is
not thought worth while to distinguish all its incidental variations.
Our physicians esteem only the pure oxide of zinc; and as they know
how to obtain it, they are not under the necessity of using impure
furnace-calamine. In our melting-houses it is employed, without much
nicety in the choice, for making zinc or brass[87].
What here appears to me most singular is, that the ancients should have
given the same names to furnace-calamine as they gave to ores that
contained zinc. The affinity of these substances they could conjecture
only from their effects, or perhaps they were induced to do so from
observing that furnace-calamine was not produced but when the different
kinds of _cadmia_, as they were called, were melted; that is, when
yellow and not red copper was obtained. _Ofenbruch_ got the name of
furnace-calamine at Rammelsberg, when it was observed that it could be
employed instead of native calamine for making brass[88]. Were the
ancients then in any measure acquainted with this use of it? Galen
and Dioscorides speak only of its use in medicine, and say nothing of
its being employed in the preparation of brass. The Arabian writers,
particularly the translators of the Greek physicians, speak in a much
clearer manner of the preparation of brass; but the appellations which
they employ are so indeterminate in their signification, that an
answer to the above question cannot be deduced from them. _Climia_,
which some pronounce _calimia_ and from which the modern Greeks made
_kelimia_, and the Latins _lapis calaminaris_, seems to have entirely
the same meaning as _cadmia_. _Tutia_, which occurs first in the
eleventh century, in Avicenna, and which the Greeks write _toutia_,
or perhaps more properly _thouthia_, signifies sometimes _pompholyx_;
but in common it seems to express also minerals that contain zinc, and
likewise furnace-calamine[89]. Could it be proved that the _tutia_
of the Arabs and later Greeks was furnace-calamine, or the _tutia_
of our druggists, the oldest account with which I am acquainted of
furnace-calamine, employed in making brass, would occur in Zosimus,
who, according to every appearance, lived in the fifth century[90].
This author tells us, that in order to make brass, Cyprus copper must
be melted, and pounded _tutia_ must be strewed over it. Salmasius
suspects that Zosimus here means only calamine: but however this may
be, his receipt has been retained till the present time in books on the
arts; for these recommend not calamine, but _tutia_[91].
We can with more certainty affirm that this use of furnace-calamine, in
making brass, was known to Albertus Magnus in the thirteenth century;
for he says, first, that yellow copper was made by the addition of
calamine, which he calls _lapis calaminaris_. He tells us afterwards,
that Hermes taught how to give a gold colour to copper by throwing
pounded _tutia_ into the melted metal. _Tutia_, says he, which is
used in the transmutation of metals, is not a native mineral, but
an artificial mixture, produced in the furnace when copper-ore is
melted; and he advises glass-gall to be strewed over the ore, otherwise
calamine and _tutia_ will lose their force in the fire[92]. It would
appear that the last-mentioned name, in the thirteenth century,
signified only furnace-calamine, and that its use for making brass was
at that period known.
For many centuries, however, the _ofenbruch_ (furnace-calamine), with
which, as we are told, the furnaces at Rammelsberg overflowed, was
thrown aside as useless, till at length, in the middle of the sixteenth
century, Erasmus Ebener first showed that it might be used instead
of native calamine for making brass. This Ebener, descended from the
noble family of that name at Nuremberg, was a man of great learning,
and an able statesman. He was employed by his native city, and by
foreign princes, on occasions of the highest importance. In 1569 he
was privy-counsellor to Julius duke of Brunswick, and died in 1577,
at Helmstadt, where he was buried. I regret much that I can give no
further account of this important discovery; the time even when it was
made is not known with certainty. Lœhneyss says that it was sixty years
before the period when he wrote. But at what period did he write? The
oldest edition, with which I am acquainted, of his treatise on mines,
is of the year 1617, so that this discovery would fall about the year
1557[93]. Calvör caused to be printed an old account of the Rammelsberg
mines, which was said to have been published in 1565. According to that
work, Ebener made the above-mentioned observation at Nuremberg, about
seventeen years before, that is, about the year 1548. Schluter assigns
as the period about 1550, and Honemann about 1559. We may therefore
very safely place it in the middle of the sixteenth century, and
probably the discovery happened in 1553, at which time Ebener was sent
to duke Henry, with whom he continued a long time, as we are expressly
told by Doppelmayer. This use of calamine refuse induced the managers
of the profitable brass-works in the Harz forest to pick up carefully
that which before had been thrown aside. Duke Julius, who endeavoured
to improve every branch of manufacture, and particularly what related
to metallurgy, and who, agreeably to the then prevailing mode of
princes, suffered himself to be duped with the hopes of making gold,
improved the brass-works at Buntheim, below Harzburg, and by these
means brought a great revenue to the electoral treasury.
Another production of zinc, artificial white vitriol, was also long
prepared, used and employed in commerce before it was known that it was
procured from this metal. That it was not known before the middle of
the sixteenth century, and that it was first made at Rammelsberg, may
with confidence be affirmed. Schluter ascribes the invention of it to
duke Julius, and places it in the year 1570: but it must be somewhat
older than the above-quoted account of Rammelsberg; for the author,
who wrote about 1565[94], relates, that in his time one citizen only,
whom he calls Henni Balder, boiled white vitriol; and it appears that
this person kept the process a secret. That the invention was not then
new, is evident from his adding, that what its effects might be in
medicine had not been examined; but that its use in making eye-water
had been known almost as early as the time when it was discovered. This
agrees with another account, according to which the method of boiling
white vitriol was found out at the time when Christopher Sander, whose
service to the Harz is well-known, was tithe-gatherer. Honemann says
that Sander was tithe-gatherer at the mines of the Upper Harz before
the year 1564, but that in this year he was principal tithe-gatherer
and director of the mines and melting-houses at Goslar. Sander himself,
in a paper dated August 3, 1575, seems to ascribe the invention of
white vitriol to duke Julius[95].
At first this salt was called _Erzalaun_, a name occasioned by its
likeness to alum, but afterwards it was more frequently known by those
of _Gallitzenstein_, _Golitzenstein_, and _Calitzenstein_. The latter
names however appear to be older than white vitriol itself; as we
find that green vitriol, even before the year 1565, was called green
_Gallitzenstein_. May not the word be derived from _gallæ_; because it
is probable that vitriol and galls were for a long time the principal
articles used for making ink and in dyeing? I am of opinion that the
white vitriol, which is produced in the mines of Rammelsberg in the
form of icicles, gave rise to the discovery and manufacture of this
salt. The former, so early as the year 1565, was called white native
vitriol, or white _Gogkelgut_, and was packed up in casks, and in that
manner transported for sale[96]. I shall not here enter into the old
conjectures respecting the origin and component parts of this vitriol;
but it deserves to be remarked, that Henkel and Neumann[97] observed
in it a mixture of zinc, by which Brandt, a member of the Swedish
council of mines, was led to prove, that, when pure, it consists of
vitriolic acid and oxide of zinc; and this was afterwards confirmed by
Hellot[98].
I come now, in the last place, to the history of this metal, which,
when furnace-calamine was used, could not remain long unobserved, as
it is sometimes found amongst it uncalcined in metallic drops. It is
worthy of remark, that Albertus Magnus, who first described the use
of furnace-calamine in making brass, is the oldest author in whose
works mention is made of zinc. He calls it _marchasita aurea_. This
was properly a stone, the metallic particles of which were so entirely
sublimated by fire, that nothing but useless ashes remained behind.
It contained fixed quicksilver, communicated a colour to metals, on
which account it was well known to the alchemists, burned in the fire,
and was at length entirely consumed. It was found in various parts,
but that at Goslar was the best, because the copper it contained
seemed to have in it a mixture of gold. To give this copper however
a still greater resemblance to gold, some tin was added to it, by
which means it became more brittle. This marchasita also rendered
copper white as silver. Thus far Albertus. It obtained without doubt
the name of _marchasita aurea_, because zinc communicates a yellow
colour to copper; and for the same reason the Greeks and the Arabians
called _cadmia_ golden or _aurea_. But how could Albertus say that
marchasite made copper white? Did he commit a mistake, and mean tin?
To me this appears not probable, as at one time he seems to call it
_argentea_. I imagine that he knew that copper, when mixed with as much
zinc as possible, that is, according to Scheffer, eighty-nine pounds
to a hundred, became white; and it appears that by this he wished to
establish its affinity with quicksilver.
The next author who gives an intelligible account of this metal is
Theophrastus Paracelsus, who died in 1541. I do not however imagine
that it was forgotten in this long interval, at least by those who were
called alchemists. I am rather of opinion, that on account of the great
hopes which it gave them by the colouring of copper, they described it
purposely in an obscure manner, and concealed it under other names,
so that it was not discovered in their works. There are few who would
have patience to wade through these, and the few who could do so, turn
their attention to objects of greater importance than those which
occupy mine. Gold and silver excepted, there is no metal which has had
formerly so many and so wonderful names as zinc[99]. For this reason,
chemists long believed that zinc was not a distinct metal, but only a
variety of tin or bismuth; and with these perhaps it may hence have
been often confounded.
The name zinc occurs first in Paracelsus. He expressly calls it a
distinct metal, the nature of which was not sufficiently known; which
could be cast, but was not malleable, and which was produced only in
Carinthia. Was he then unacquainted with the zinc of Goslar, which was
known at an earlier period to Albertus Magnus[100]? George Agricola,
who wrote about the year 1550, speaks however of the Goslar zinc,
but he calls it _liquor candidus_, and in German _conterfey_[101].
Mathesius, who published his sermons in 1562, says, “at Freyberg there
is red and white zinc.” Perhaps he did not mean the metal, but minerals
that contained zinc. George Fabricius, who died in 1571, conjectures
that _stibium_ is what the miners call _cincum_, which can be melted,
but not hammered.
It is seen by these imperfect accounts that this metal must have been
scarce, even in the middle of the sixteenth century, and that it was
not in the collection of Agricola, which was considerable for that
period. Libavius, who died in 1616, mentions it several times, but he
regrets, in one of his letters, that he had not been able to procure
any of it[102]. Was this owing to the prohibition of duke Julius, by
which it was forbidden to be sold? This prohibition is quoted by Pott
from Jungii Mineralogia, with which I am unacquainted; but as Pott has
already, by his unintelligible quotations, made me spend many hours to
no purpose, I shall not waste more in searching for it. The prohibition
alluded to is mentioned neither by Rehtmeier nor by any other author.
The foolish taste for alchemy, which prevailed then at the duke’s
court, makes it not altogether improbable that one was issued[103];
and if that was really the case, it was occasioned not so much by any
dread of this metal being misused, as Pott thinks, but by the high
hopes which were entertained of its utility in making gold. The first
accurate and certain account of the method of procuring zinc at Goslar,
is, as far as I know, given by Lœhneyss, in 1617, though he considers
it to be the same as bismuth[104]. Joh. Schrœder of Westphalia, who
died in 1664, calls it _marcasita pallida_.
The first person who purposely procured this metal from calamine, by
the addition of some inflammable substance, was undoubtedly Henkel, who
gave an account of his success in the year 1741, though he concealed
the whole process[105]. After him, Dr. Isaac Lawson, a Scotsman, seems
to have made experiments which proved the possibility of obtaining
zinc in this manner on a large scale; and in 1737 Henkel heard that it
was then manufactured in England with great advantage. Of this Lawson
I know nothing more than what is related by Dr. Watson[106]. Anthony
von Swab, member of the Swedish council of mines, procured this metal
afterwards from calamine by distillation, in 1742; as did Marggraf in
1746, who appears however not to have been acquainted with the Swedish
experiment. In the year 1743, one Champion established zinc works at
Bristol, which were continued by his successor James Emerson, who
established works of the like kind at Henham, in the neighbourhood.
The manner in which the metal was procured, has been described by Dr.
Watson in his Chemical Essays.
The greater part of this metal, used in Europe, was undoubtedly brought
from the East Indies. The Commercial Company in the Netherlands,
between the years 1775 and 1779, caused to be sold, on their account,
above 943,081 pounds of it[107]. In the year 1780, the chamber of
Rotterdam alone sold 28,000 pounds; and I find, by printed catalogues,
that the other chambers, at that period, had not any of it in their
possession. If the account given by Raynal be true, the Dutch East
India Company purchased annually, at Palimbang, a million and a half
of pounds[108]. In 1781, the Danish Company at Copenhagen purchased
153,953 pounds of tutenage, which had been carried thither in two
vessels, at the rate of from four and one-eighth to four and a quarter
schillings Lubec per pound. It is probable that the English and Swedes
import this article also. It would be of some consequence if one could
learn in what part of India, when, and in what manner this metal was
first procured, and in what year it was first carried thence to Europe.
According to the scanty information which we have on the subject, it
comes from China, Bengal, Malacca[109], and the Malabar coast, from
which copper and tin are also imported. In the oldest bills of lading
of ships belonging to the Netherlands I find no mention of zinc; but it
is possible that it may be comprehended under the name of Indian tin;
for so it was at first called. Savot, who died about the year 1640,
relates, on the authority of a contemporary writer[110], that some
years before the Dutch had taken from the Portuguese a ship laden with
this metal, which was sold under the name of _speautre_. It is probable
therefore that it was brought to Europe so early as the beginning of
the seventeenth century. Indian tin is mentioned by Boyle.
It is probable that this metal was discovered in India before anything
of the European zinc had been known in that country; but we are still
less acquainted with the cause of the discovery than with the method of
procuring the metal. We are told that an Englishman, who, in the above
century, went to India, in order to discover the process used there,
returned with an account that it was obtained by distillation _ver
descensum_.
Respecting the origin of the different names of this metal, I can
offer very little. _Conterfey_ signified formerly every kind of metal
made in imitation of gold[111]. Frisch says it was called _zink_, from
which was formed first _zinetum_, and afterwards _zincum_, because
the furnace-calamine assumes the figure of (_zinken_ or _zacken_)
nails or spikes; but it is to be remarked that these names do not
occur before the discovery of this metal, though _ofenbruch_ was known
long before. Fulda speaks of the Anglo-Saxon _sin_, _zink_, which he
translates _obryzum_. _Spiauter_, _speauter_, and _spialter_, from
which Boyle made _speltrum_, and also _tutaneg_ or _tuttanego_, came
to us from India with the commodity. Under the last-mentioned name
is sometimes comprehended a mixture of tin and bismuth. _Calaem_ is
also an Indian appellation given to this metal, and has a considerable
likeness to calamine; but I am of opinion with Salmasius that the
latter is not derived from the former, as _lapis calaminaris_ occurs
in the thirteenth century, and _calaem_ was first brought to us by the
Portuguese from India.
[Most of the zinc works in this country are situated in the
neighbourhood of Birmingham and Bristol; a few furnaces also exist
in the neighbourhood of Sheffield, among the coal-pits surrounding
that town; there is also one at Maestag in Glamorganshire. The ores
worked at Bristol and Birmingham are principally obtained from the
Mendip-hills and Flintshire; those at Sheffield from Alston Moor. The
greater part however of the zinc used in this country is imported in
ingots and plates from Silesia, by way of Hamburg, Antwerp, Dantzic,
&c. We receive annually from 100,000 to 170,000 cwts. from Germany; of
this quantity, about 80,000 cwt. are entered for home consumption, and
the rest is exported for India.
From its moderate price and the ease with which it can be worked,
zinc is now extensively used for making water-cisterns, baths, pipes,
covering of roofs, and a great many architectural purposes. It has also
of late been employed in the curious art of transferring printing,
known under the name of _Zincography_, but owing to the ease with
which this metal becomes coated with a film of oxide or carbonate,
by exposure to the air, the plates cannot be preserved for any great
length of time.]
FOOTNOTES
[82] [It has been observed by an anonymous reviewer (British and
Foreign Medical Review, vol. viii. p. 361) that a passage in Strabo
authorises the belief that the ancients were acquainted with this metal
in its separate state, and that it is the _false silver_, ψευδάργυρον,
of that ancient geographer.]
[83] Bulletin des fouilles d’une ville Romaine, p. 11.
[84] Plin. lib. xxxiv. sect. 22.
[85] Zinc-ore, besides being mentioned by Aristotle and Strabo, is
mentioned by Galen, De Simplic. Medicam. Facultatibus, lib. ix. p. 142.
As he found no furnace-calamine when he resided in Cyprus, he procured
from the overseer of the mines some raw _cadmia_, which had been found
in the mountains and rivulets, and which certainly must have been
calamine.
[86] At first it was called _æs cyprium_, but in the course of time only
_cyprium_; from which was at length formed _cuprum_. It cannot however
be ascertained at what periods these appellations were common. The
epithet _cupreus_ occurs in manuscripts of Pliny and Palladius; but one
cannot say whether later transcribers may not have changed _cyprius_
into _cupreus_, with which they were perhaps better acquainted. The
oldest writer who uses the word _cuprum_ is Spartian; who says, in
the Life of Caracalla, “cancelli ex ære vel cupro.” But may not the
last word have been added to the text as a gloss? Pliny, book xxxvi.
26, says, “Addito cyprio et nitro;” which Isidore, xvi. 15, p. 393,
expresses by the words _adjecto cupro et nitro_. The superiority of the
Cyprian copper gave occasion to this appellation; as the best iron or
steel was called _chalybs_, from the _Chalybes_ (a people of Galatia)
who prepared the finest, and carried on the greatest trade with it.
But in what did the superiority of this Cyprian copper consist? In its
purity, or in its colour, which approached near to that of gold? That
island produced a great deal of ore which contained zinc, and abounded
also with calamine. Pliny says, “in Cypro prima fuit æris inventio.”
Red copper however had been known there from the earliest periods, so
that the honour of its invention must be allowed to that island without
any contradiction; and Pliny must undoubtedly allude in the above
passage to some particular kind.
[87] Dioscorides, book v. c. 84, first mentions some sorts of _cadmia_,
βοτρυίτις, πλακωτὴ and ὀστρακῖτις. These, according to Galen and
Pliny, are undoubtedly certain kinds of (_ofenbruch_) furnace-calamine;
but Salmasius in his book De Homonymis, p. 230, and Sarracen in his
Annotations, p. 113, are of opinion that Dioscorides considered them
as native kinds of _cadmia_, or minerals abundant in zinc. I cannot
however allow myself to believe that Dioscorides, who was so careful,
and who immediately after describes the artificial preparation of
_cadmia_ clearly and properly, should have thus erred. Besides, every
kind of _ofenbruch_ (furnace-calamine) must have discovered its origin
from fire to such a good judge of minerals as Dioscorides. I am
convinced that he, as well as Galen and Pliny, considered the above
kinds as furnace-calamine.
Pompholyx was the name of the white flowers of zinc which Dioscorides,
v. 85, p. 352, compares to wool, and which by chemists were formerly
called _lana philosophica_. The ancients collected these flowers when
produced by the melting of zinc-ore; but they obtained them also by
an apparatus which is fully described by Dioscorides and Galen, and
which approaches near to that used for collecting arsenic in the poison
melting-houses, as they are usually called.
[88] This however I will not with certainty affirm. As _calmey_ and
_galmey_ have probably taken their rise from _cadmia_ or _calimia_, and
as both these words signified proper calamine, as well as _ofenbruch_,
the latter, perhaps, may at an earlier period have signified
furnace-calamine.
[89] Proofs respecting this subject may be found in Salmasius De
Homonymis.
[90] It is not certainly known when this Zosimus Panopolitanus lived.
His works, which must contain abundance of information respecting the
history of chemistry, have never yet been printed. The greater part
of them were preserved in the king’s library at Paris. The receipt to
which I allude has been inserted by Salmasius, p. 237.
[91] We read in Observations sur la Physique, vi. p. 255, that for many
years _tutia_ has been collected and sold in the bishopric of Liege.
Lehmann endeavours to show that it was made by the Jews in Poland.
Novi Comment. Acad. Petrop. xii. p. 381. As the use of tutia [which is
an impure oxide of zinc found in the chimneys of the furnaces in which
zinc-ores are roasted, or in which zinciferous lead-ores are smelted]
has been almost abandoned, because physicians prefer pure flowers of
zinc, and because those who make pinchbeck employ purified zinc, it is
probable that this substance will soon be entirely neglected.
[92] De Mineralibus. Coloniæ, 1569, 12mo, p. 350, lib. iv. cap. 5; and
lib. v. cap. 7, p. 388.
[93] The other edition was printed at Stockholm and Hamburg, by
Liebezeit, and is the same as that mentioned by H. Gatterer, in
Anleitung den Harz zu bereisen, i. p. 313, and ii. p. 13.
[94] “White vitriol also is made at Goslar, but by one citizen only,
named Henni Balder. It is not procured by the evaporation of copper
like other vitriol; but when large quantities of ore are roasted in
the furnaces, a red substance is from time to time collected on the
refuse of the ore, and found in some places half an ell thick. This
substance, which is saltish, is formed into a lye, and boiled in small
leaden pans. The rest of the process I do not know, but I observed that
it crystallizes like saltpetre, but is stronger and whiter. It is also
cast into small cakes about the thickness of one’s hand. This vitriol
is employed by the leather-dressers, and may be used for many things
instead of alum; but it cannot be used in dressing white skins, because
it makes them yellowish.”
[95] Bruckmann, ii. p. 446. [Schwartze, in his Pharm. Tabell. 2nd edit.
p. 779, states that white vitriol was known towards the end of the
thirteenth or at the commencement of the fourteenth century.]
[96] Calvor, Historische Nachricht, p. 199 and 200. Properly it is
written and pronounced _jöckel_. It is very remarkable that in Iceland
this word at present signifies icicles.
[97] Chemie, von Kessel, iv. 2, p. 832, where may be found the old
opinions on this subject.
[98] Brandt, in Acta Upsaliens. 1735. Hellot, in Mémoires de l’Acad.
des Sciences, Paris, 1735, p. 29. [Sulphate of zinc or white vitriol
is at present manufactured in considerable quantity for pharmaceutical
purposes, and for the calico-printer.]
[99] A great many may be found collected in Fuchs, Geschichte des
Zinks. Erfurt, 1778, 8vo.
[100] Paracelsi Opera. Strasb. 1616, fol. I shall here transcribe the
principal passage. Of zinc:--There is another metal, zinc, which is in
general unknown. It is a distinct metal of a different origin, though
adulterated with many other metals. It can be melted, for it consists
of three fluid principles, but it is not malleable. In its colour it is
unlike all others, and does not grow in the same manner; but with its
_ultima materia_ I am as yet unacquainted, for it is almost as strange
in its properties as _argentum vivum_. It admits of no mixture, will
not bear the _fabricationes_ of other metals, but keeps itself entirely
to itself.
[101] De Re Metallica, lib. ix. p. 329.
[102] In J. Hornung’s Cista Medica. Lipsiæ.
[103] How much duke Julius, who in other respects did great service to
his country, suffered himself to be duped by the art of making gold,
appears from an anecdote given by Rehtmeier, p. 1016. Of this anecdote
I received from M. Ribbentrop an old account in manuscript, which one
cannot read without astonishment. There is still shown, at the castle
of Wolfenbuttle, an iron stool, on which the impostor, Anna Maria
Zieglerinn, named Schluter Ilsche, was burnt, February 5, 1575.
[104] Page 83:--“When the people at the melting-houses are employed
in melting, there is formed under the furnace, in the crevices of the
wall, among the stones where it is not well plastered, a metal which is
called zinc or _conterfeht_; and when the wall is scraped, the metal
falls down into a trough placed to receive it. This metal has a great
resemblance to tin, but it is harder and less malleable, and rings like
a small bell. It could be made also, if people would give themselves
the trouble; but it is not much valued, and the servants and workmen
only collect it when they are promised drink-money. They however scrape
off more of it at one time than at another; for sometimes they collect
two pounds, but at others not above two ounces. This metal, by itself,
is of no use, as, like bismuth, it is not malleable; but when mixed
with tin, it renders it harder and more beautiful, like the English
tin. This zinc or bismuth is in great request among the alchemists.”
[105] Kieshistorie, p. 571, and particularly p. 721.
[106] Pott refers to Lawson’s Dissert. de Nihilo, and quotes some
words from it; but I cannot find it; nor am I surprised at this, as it
was not known to Dr. Watson.--See Chemical Essays, iv. p. 34. Pryce,
in Mineral. Cornub., p. 49, says, “The late Dr. J. Lawson, observing
that the flowers of _lapis calaminaris_ were the same as those of
zinc, and that its effects on copper were also the same with that
semi-metal, never remitted his endeavours till he found the method of
separating pure zinc from that ore.” The same account is given in the
supplement to Chambers’s Dictionary, 1753, art. _calm._ and _zinc_;
and in Campbell’s Political Survey of Britain, ii. p. 35. The latter
however adds, that Lawson died too early to derive any benefit from his
discovery.
[107] Ricards Handbuch der Kaufleute, i. p. 57.
[108] Raynal says that the company purchase it at the rate of
twenty-eight florins three-quarters per hundred weight, and that this
price is moderate. At Amsterdam, however, the price was commonly
from seventeen to eighteen florins banco. According to a catalogue
which I have in my possession, the price, on the 9th of May, 1788,
was seventeen florins, and on the 22nd of January, 1781, it was only
sixteen.
[109] Linschoten, b. ii. c. 17. The author calls it _calaem_, the name
used in the country. It is a kind of tin.
[110] De Nummis Antiquis; in Grævii Thes. Antiq. Rom. xi. p. 1195.
[111] Matthesius, Pred. v. p. 250.--“_Conterfeil_ is a metal of little
value, formed by additions and colouring substances, so that it
resembles gold or silver, as an image, or anything counterfeited, does
its archetype. Thus copper is coloured by calamine and other mixtures,
in such a manner that it appears to be pure gold.” In the police
ordinance issued at Strasburg in 1628, young women are forbidden to
wear gold or silver, or any _conterfaite_, and everything that might
have the appearance of gold or silver.
CARP.
So obscure is the ichthyology of the ancients, or so little care has
been taken to explain it, that the question whether our carp were known
to Aristotle, Pliny, and their contemporaries, cannot with any great
degree of probability be determined. Besides, that subject is attended
with much greater difficulties than the natural history of quadrupeds.
Among four-footed animals there is a greater variety in their bodily
conformation, which at any rate strikes the eye more, and can be more
easily described than that of fishes, which in general are so like in
shape, that an experienced systematic naturalist finds it sometimes
difficult to determine the characters of the genera and species. It is
not surprising therefore that the simple descriptions of the ancients,
or rather the short accounts which they give us of fish, do not afford
information sufficient to enable us to distinguish with accuracy the
different kinds. Quadrupeds may terrify us by their ferocity, or
endeavour to avoid us by shyness and craft; but it is still possible to
observe their sexes, their age, and their habits, and to remark many
things that are common to one or only a few species. Fishes, on the
other hand, live in an element in which we cannot approach them, and
which for the most part conceals them from our observation. The chase,
since the earliest periods, and in modern times more than formerly,
has been the employment of idle persons, who bestow upon it greater
attention the fewer those objects are which can attract their curiosity
or employ their minds: but fishing has almost always been the laborious
occupation of poor people, who have no time to make observations,
as they are obliged to follow it in order to find a subsistence;
and mankind in general seldom see fish except on their tables or in
collections of natural history. On this account those properties of
fish by which their species could be determined, were less known. The
descriptions of four-footed animals which have been handed down to us
from the time of the Greek and Roman writers, give us, at any rate,
some information; but from those of fishes, which are more uncommon,
we can scarcely derive any; unless one were as acute or easy of belief
as many collectors of petrefactions, who imagine that they can
distinguish each species of fish in the impressions which they see in
stones. More however might be done towards elucidating the ichthyology
of the ancients than has hitherto been attempted. It would be necessary
only to make a beginning by collecting the species and names which
can with certainty be determined, together with the authorities, and
separating them from the rest; and an abstract should be formed of what
is said in the ancients respecting the unknown species, or whatever
may in any measure serve to make us acquainted with them; but mere
conjectures ought never to be given as proofs, nor ought the opinions
of commentators, or the explanations of dictionaries to be adopted
without sufficient grounds. If these are to be believed without further
examination, the names _cyprini_ and _lepidoti_ must be considered as
those of carp; and the proposed question would be soon answered: but
that opinion has scarcely probability in its favour when one searches
after proofs.
I shall not here lay before the reader everything completely that the
ancients have said respecting the _cyprini_, and which is in part so
corrupted by transcribers, that no certain meaning can be drawn from
it. Were I to treat of the ichthyology of the ancients, it might be
necessary; but as that is not the case, I shall only quote such parts
of it as have been employed by Rondelet and others to prove that they
were our carp. Their principal grounds seem to be, that among all the
fish of the ancients no others occur which can with any probability be
considered as carp. If the _cyprini_ therefore were not carp, these
must not have been named by the ancients; and that undoubtedly will not
readily be admitted. It is well known what a high value the ancients,
particularly the Orientals, set upon fish, of which they had a great
variety; and it appears that they preferred them to all dishes prepared
from four-footed animals or fowls. Fish seem to have been the choicest
delicacies of voluptuaries, and in that respect they are oftener
mentioned by historians than fowls. Physicians also, to whom the most
sumptuous tables have in all ages been of the greatest benefit, speak
of fish oftener in their writings than of dishes made of the flesh of
other animals. In the ancient cookery, the number of dishes prepared
from fish is indeed great in comparison of those dressed from fowls.
_Turdi_ and _attagines_ are much praised; but had pheasants, snipes,
partridges, and others, been as much esteemed then as they are now,
these would not have been forgotten, or would have occurred oftener.
Fish at present form the principal food in Greece, as well as at
Constantinople, and a great abundance and variety of them may be found
there in the markets; but fowls which have been caught or shot are
seldom exposed for sale. When the Egyptian and Greek monks wished
to distinguish themselves by abstinence and temperance, they denied
themselves all kinds of fish, as the richest delicacies, in the same
manner as pretended devotees among the Europeans deny themselves flesh.
But though all this may be true, it does not prove that our carp must
occur in the writings of the ancients. The Roman voluptuaries, indeed,
left very little untried that was likely to gratify their appetite; but
it was impossible for them to make a trial of everything. There may
have been particular reasons which prevented them from meeting with
carp; and who will venture to affirm that all the knowledge of the
ancients must be contained in those few of their writings which have
been preserved to us by accidents?
If one, freed from these prejudices, should now ask why the _cyprinus_
must be our carp, the answer will be, because what we read of the
tongue and scales of the _cyprini_ cannot be applied with so much
propriety to any species of fish as to the _Cyprinus carpio_ of
Linnæus. Aristotle informs us that the _cyprini_ had properly no
tongue, but that their soft fleshy palate might very readily be taken
for one[112]. Athenæus affirms that they had a tongue, but that it
lay in the upper part of the mouth or palate; and in confirmation of
this he refers to Aristotle[113]. This assertion of Athenæus however
is very dubious; for these words are not to be found in the works of
Aristotle which have been preserved, though the same meaning might be
indeed forced, in case of necessity, from the passage first quoted. It
is possible that Athenæus, as Casaubon[114] has already conjectured,
may here, as well as in other parts, allude to some book of Aristotle
not now extant. Besides, he calls the fish of which he speaks, not
_cyprinus_, but _cyprianus_; and a question therefore arises, whether
he may not have meant some other kind. This much at any rate appears
certain from the passage of Aristotle, that the _cyprinus_ had a thick
fleshy palate; and that indeed is the case with our carp, so that the
head, on account of the delicacy and agreeable taste of the palate, is
reckoned the most relishing part. By that circumstance however nothing
is proved; as it is not peculiar to carp alone, but common to every
species of the same family, such as the bream, tench, &c. Fish of this
kind, says Bloch, have properly no tongue; that which appears to be
one is merely a cartilaginous substance which projects through those
band-like parts that enclose it on each side. This proof would have
more weight, did we find it related, that in the time of Aristotle,
the tongue was considered as an exquisite morsel: but that is not
mentioned; and H. Krunitz is mistaken, when he says that Heliogabalus,
to satisfy his luxurious appetite, was induced to try a fricassee of
the tongues of carp: it consisted only of the tongues of peacocks and
nightingales[115]. Had the ancients really used carp on their tables,
we must have ascribed to them the discovery of these delicious fish.
The other proof which is brought from the scales consists in what is
said by Dorion, in Athenæus[116], that the _cyprianus_ was called also
by some _lepidotus_, or scaly. As nearly all fish have scales, the
scales of this species must have been extremely large, as they got that
name by way of eminence; and it must be indeed allowed, that the above
epithet would suit our carp exceedingly well, as their scales are very
large. But this circumstance alone proves nothing, as the _Mullus_
and _Mugil_ have still larger scales; and to the first genus belonged
one of the fish most esteemed by the ancients[117]. Strabo mentions
the _lepidotus_ among the sacred fish of the Nile; but whether it be
the same as that of which Dorion speaks, cannot be determined. It is
certain that the Nile contains carp still; for Norden saw them caught
at the waterfall near Essuane, which is the ancient Syene. Did we know
that the modern Greeks at present call carp _cyprini_, this would prove
more; for it is an undoubted fact that the ancient names have for the
most part been retained in Greece. We are assured by Massarius[118],
that the Greeks still use the name _cyprinus_; but Gyllius says that
it is employed only by a few: and this is confirmed by Bellon, who
mentions all the names of carp which he heard in Greece, and which
are entirely different from the ancient[119]; but he adds, that carp
in Ætolia are still called _cyprini_. Both the before-mentioned
circumstances respecting the _cyprini_ agree extremely well with our
carp; but as they will suit other kinds equally well, they afford no
complete proof, but only a probability which amounts to this, that
among the large-scaled fish, carp in particular have a fleshy palate;
and it is readily admitted that the ancients were acquainted with all
kinds, and chose names for them with more foundation than is done at
present.
In opposition to this probability it may be said that Oppian and Pliny
reckon the _cyprini_ among the sea-fish, to which kind our carp do not
belong. This reply however, which some have indeed made, is not of
great weight. In the first place, both these writers seem to have been
in an error; for what Pliny says of the _cyprini_ is evidently taken
from Aristotle, and the latter does not tell us that these fish live
in the sea, but rather the contrary. The Roman author, as Dalechamp
remarks, added the words _in mari_, if they were not added by some
transcriber. Oppian as a poet does not always adhere strictly to truth;
and he makes more of the freshwater fish of Aristotle to be inhabitants
of the sea. In the second place, I consider the distinction made
between sea-fish, freshwater fish and those kept in ponds, to be not
always very certain or well founded. Who knows whether the greater part
of the last may not have been originally sea-fish? This is the more
probable in regard to carp, as Professor Foster says that carp are
sometimes caught in the harbour at Dantzic[120].
In order to answer the question here proposed, another point may be
considered. As all nations at present give these fish the same name,
it is probable that it was brought with them from that country where
they were first found, and from which they were procured. Cassiodorus,
who lived in the sixth century, is the oldest author as yet known in
whom that name has been observed[121]. In a passage where he speaks
of the most delicate and costly fish, which at that time were sent
to the tables of princes, he says, “Among these is the _carpa_,
which is produced in the Danube.” In the earliest Latin translation
of Aristotle, the word _cyprinus_, as Camus says, is expressed by
_carpra_. In the thirteenth century this fish was called by Vincentius
de Beauvais[122] _carpera_, and by Cæsarius _carpo_; and it is highly
probable that both these names allude to our carp. By the above passage
of Cassiodorus, the opinion that these fish were the _cyprini_ of the
ancients obtains a new, but at the same time a very feeble proof;
for the _cyprinus_ was found also in the Danube, as we learn from
Ælian[123], who among the fish of the Ister, mentions black _cyprini_;
and these, according to the conjecture of Professor Schneider, were
the black fish of the Danube which Pliny considers as unhealthful or
poisonous, and like which there were some in Armenia. Our carp indeed
are not poisonous, but Pliny alludes to a particular variety, and what
he says was only report, to which something must have given rise,
as also to the idea of carp with a death’s head, and the head of a
pug-dog, as some have been represented by writers of the sixteenth
century. The _carpo_ of Cæsarius appears to have been our carp, because
its scales had a very great resemblance to those of the latter; for we
are told in the work already quoted, that the devil, once indulging
in a frolic, appeared in a coat of mail, and had scales like the fish
_carpo_. The _carpera_ of Vincent de Beauvais is still less doubtful,
as the same craft in avoiding rakes and nets is ascribed to that fish
as is known to be employed by our carp. Sometimes they thrust their
heads into the mud and suffer the net to pass over them; and sometimes
they join the head and tail together, and separating them suddenly,
throw themselves towards the surface of the water, and springing often
four or five feet above the net, make their escape.
But whence did this name arise? The origin assigned by Vincentius,
or the anonymous author of the lost books De Natura Rerum, like
another mentioned in ridicule by Gesner, is too silly to be repeated.
More learned at any rate is the derivation of Menage, who traces it
from _cyprinus_, which was afterwards transformed into _cuprinus_,
_cuprius_, _cuprus_, _cupra_, _curpa_, and lastly into _carpa_. For my
part, I am more inclined to derive it from a dialect which was spoken
on the banks of the Danube, and to believe that it was brought with the
fish from the southern part of Europe; but I am too little acquainted
with that dialect to be able to render my conjecture very probable;
and the etymologists I consulted, such as Wachter, Ihre, Johnson, &c.,
afforded me no assistance. Fulda gave me some hopes, as he allows the
word to be of German extraction; but I must confess that his derivation
is too far-fetched, and like the chemistry of the adepts, to me not
perfectly intelligible.
It may perhaps not be superfluous here to observe that one must not
confound _carpa_ and _carpo_, or our carp, with _carpio_. The latter
belongs to the genus of the salmon and trout; and in the Linnæan system
is called _Salmo carpio_. It is found chiefly in the Lago di Garda, the
ancient Lacus Benacus, on the confines of Tyrol. The oldest account of
this fish is to be found in works of the sixteenth century, such as
the poems of Pierius Valerianus, and in Jovius de Piscibus. According
to Linnæus, it is found in the rivers of England; but that is false.
This celebrated naturalist suffered himself to be misled by Artedi,
who gives the char or chare, mentioned by Camden in his description of
Lancashire, as the _Salmo carpio_. Pennant however, by whom it is not
mentioned among the English fish, says expressly that the char is not
the _carpio_ of the Lago di Garda, but rather a variety of the _Salmo
alpinus_[124].
That our carp were first found in the southern parts of Europe, and
conveyed thence to other countries, is undoubtedly certain. Even at
present they do not thrive in the northern regions, and the further
north they are carried the smaller they become[125]. Some accounts of
their transportation are still to be found. If it be true that the
Latin poem on the expedition of Attila is as old as the fifth or sixth
century, and if the fish which Walther gave to the boatman who ferried
him over the Rhine, and which the latter carried to the kitchen of
Gunther king of the Franks, were carp, this circumstance is a proof
that these fish had not been before known in that part of France
which bordered on the Rhine[126]. The examination of this conjecture
I shall however leave to others. D’Aussy quotes a book never printed,
of the thirteenth century, entitled Proverbes, and in which is given
an account of the best articles produced at that time by the different
parts of the kingdom, and assures us that a great many kinds of fish
were mentioned in it, but no carp, though at present they are common
all over France.
It appears also that there were no carp in England in the eleventh
century, at least they do not occur in the Anglo-Saxon Dictionary
of Ælfric, who in 1051 died archbishop of York[127]. We are assured
likewise that they were first brought into the kingdom in the fifth
year of the reign of Henry VIII., or in 1514, by Leonard Mascal of
Plumsted in Sussex[128]. What we read in the Linnæan System, that these
fish were first brought to England about the year 1600, is certainly
erroneous. Where that celebrated naturalist, under whom I had the
pleasure of studying, acquired this information, I do not know.
Denmark is indebted for these fish to that celebrated statesman Peter
Oxe, who introduced them into the kingdom as well as cray-fish, and
other objects for the table. He died in the year 1575.
We are told that these fish were brought from Italy to Prussia, where
they are at present very abundant, by a nobleman whose name is not
mentioned. This service however may be ascribed with more probability
to the upper burg-grave, Caspar von Nostiz, who died in 1588, and who
in the middle of the sixteenth century first sent carp to Prussia from
his estate in Silesia, and caused them to be put into the large pond at
Arensberg not far from Creuzburg. As a memorial of this circumstance,
the figure of a carp, cut in stone, was shown formerly over a door at
the castle of Arensberg. This colony must have been very numerous in
the year 1535, for at that period carp were sent from Königsberg to
Wilda, where the archduke Albert then resided. At present (1798) a
great many carp are transported from Dantzic and Königsberg to Russia,
Sweden, and Denmark. It appears to me probable that these fish after
that period became everywhere known and esteemed, as eating fish in
Lent and on fast-days was among Christians considered to be a religious
duty, and that on this account they endeavoured to have ponds stocked
with them in every country, because no species can be so easily bred in
these reservoirs.
I shall observe in the last place, that the _Spiegel-carpen_,
mirror-carp, distinguished by yellow scales, which are much larger,
though fewer in number, and which do not cover the whole body, are
not mentioned but by modern writers. Bloch says that they were first
described by Johnston under the name of royal carp. The passage where
he does so I cannot find; but in plate xxix. there is a bad engraving,
with the title _Spiegel-karpen_, which however have scales all over
their bodies, and cannot be the kind alluded to. On the other hand, the
_Spiegel-karpen_ are mentioned by Gesner, who, as it appears, never
saw them. In my opinion, Balbinus, who wrote in the middle of the
sixteenth century, was the first person who gave a true and complete
description of them; and according to his account, they seem to have
come originally from Bohemia. The first correct figure of them is to be
found in Marsigli.
FOOTNOTES
[112] Histor. Animal. lib. iv. cap. 8.
[113] Lib. vii. p. 309.
[114] Animadvers. vii. 17, p. 540.
[115] Lampridii Vita Heliogab. c. 20.
[116] Lib. vii. p. 309.
[117] This fish was a first-rate article of luxury among the Romans,
and was purchased at a dear rate. Juvenal says, “Mullum sex millibus
emit, æquantem sane paribus sestertia libris.” See Plin. lib. ix. c.
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