The Psychology of Management by Lillian Moller Gilbreth

2. for use by the instruction card clerk in explaining to

2124 words  |  Chapter 172

the men why the rules on the instruction card are given. RELATION OF SYSTEMS TO STANDARDS SHOULD BE EMPHASIZED.--The worker is too often not made to understand the relation of Systems to Standards. The average worker does not object to Systems, because he realizes that the System is a collection of his best, least wasteful methods of doing work. When he can be convinced that standards are only efficient elements of his own methods scientifically studied and combined, any opposition to them will disappear. THE PERSONAL NOTE OF THE "SYSTEM" SHOULD BE PRESERVED.--Perhaps one thing that makes the typical "Systems" so attractive is the personal note that they contain. Illustrated with pictures of successful work that the workers themselves have done, often containing pictures of the men themselves that illustrate successful methods, with mention of the names of men who have offered valuable suggestions or inventions, they make the worker feel his part in successful results. They conserve the old spirit of coöperation between the master and his apprentices. The conditions of modern industry make it extremely difficult to conserve this feeling. Scientific Management is successful not only because it makes possible a more effective coöperation than has ever existed since the old "master-and-apprentice" relation died out, but also because it conserves in the Systems the interim channel for personal communication between the various members of the organization. SYSTEMS A VALUABLE ASSISTANCE IN TRANSITION TO SCIENTIFIC MANAGEMENT.--One great problem which those introducing Scientific Management have to face is exactly how to make the worker understand the relation of the new type of management to the old. The usefulness of the written system in use in most places where it is planned to introduce Scientific Management as a means of making the worker understand the transition has, perhaps, not been appreciated. The development of the standard from the system is easy to explain. This being done, all parts of Scientific Management are so closely related that their interrelation can be readily made apparent. It is the worker's right as well as privilege to understand the management under which he works, and he only truly coöperates, with his will and judgment as well as with his hands, when he feels that his mind is a part of the directing mind. STANDARDIZATION UNDER SCIENTIFIC MANAGEMENT ELIMINATES WASTE SCIENTIFICALLY.--Under Scientific Management the elimination of waste by the use of standards becomes a science. Standards are no longer based on opinions, as under Traditional Management, but are based upon scientific investigation of the elements of experience. As James says, in the "Psychology, Briefer Course," page 156, paragraph 4,--"It is obvious and palpable that our state of mind is never precisely the same. Every thought we have of a given fact is, strictly speaking, unique and only bears a resemblance of kind with our other thoughts of the same facts. When the identical fact recurs we must think of it in a fresh manner, see it under a somewhat different angle, apprehend it in different relations from those in which it last appeared." THE STANDARD THE RESULT OF MEASUREMENT.--It is obvious, therefore, that a scientifically derived standard can never be the outcome of an opinion. Whenever the opinion returns, the different thoughts with which it would be accompanied would so color it as to change it, and the standard with it. It is obvious, therefore, that a standard must be the result of definite mathematical and other measured proof, and not of an opinion, and that the standard must be in such physical shape that the subject-matter will always be clearly defined, otherwise the ultimate losses resulting from dependent sequences of the standard schedule and time-tables would be enormous. SUCCESSFUL STANDARDIZATION DEMANDS COMPLETE CONFORMITY TO STANDARDS.--The laws for establishment of standards; the laws of achieving them; the laws for preventing deviations from those paths that will permit of their achievement; the dependent sequences absolutely necessary to perform the complete whole; these have been worked out and given to the world by Dr. Taylor, who recognized, as James has said, page 157, that, "a permanently existing 'Idea' which makes its appearance before the footlights of consciousness at periodic intervals, is as mythological an entity as the Jack of Spades." The entire organization from the highest to the lowest must conform to these standards. It is out of the question to permit the deviations resulting from individual initiative. Individual initiative is quite as objectionable in obtaining the best results,--that is, high wages and low production cost,--as service would be on a railroad if each locomotive engineer were his own train despatcher, determining at what time and to what place he would go. INITIATIVE PROVIDED FOR.--There is a distinct place for initiative in Scientific Management, but that place is not outside of the planning department, until the planning department's method has been proved to be fully understood by achieving it. The standards must be made by the men to whom this work is assigned, and they must be followed absolutely by the worker. He is willing to follow them, under Scientific Management, because he realizes that a place for his suggestions is supplied, and that, if his suggestions are accepted, they will be incorporated into the new standards which must then be followed by all thereafter. STANDARDIZATION APPLIES TO THE WORK OF ALL.--It is important to note that standardizing is applied to the work of all. This, if understood by all, will do away with all question of discrimination or the lack of a "square deal." It will make the worker feel ready to follow his standard exactly, just as he knows the manager is following his. So, also, the worker should be made to realize that the very fact that there is a standardization means, under Scientific Management, that that applies to every man, and that there is no discrimination against him in any possible way. STANDARDIZATION CONSERVES AND DEVELOPS INDIVIDUALITY.-- Standardization conserves individual capacity by doing away with the wasteful process of trial and error of the individual workman. It develops individuality by allowing the worker to concentrate his initiative upon work that has not before been done, and by providing incentive and reward for inventions. WASTE ELIMINATED IS ELIMINATED PERMANENTLY.--Scientific Management not only eliminates waste, but provides that waste shall be eliminated for all time in the future. The standard once written down, there can be no slipping back into the old methods based upon opinions of the facts. STANDARDIZATION UNDER SCIENTIFIC MANAGEMENT RESEMBLES STANDARDIZATION OF SPELLING.--The need for standardization has already been emphasized, but might further be illustrated by the discussions, pro and con, of the question of simplified spelling. Before the days of dictionaries, our spelling was not standardized-- it was the privilege of any good writer to spell much as he desired; but the creation of written standards of spelling, that is to say the making of dictionaries, fixed the forms of spelling at that time, that is, created standards. The Simplified Spelling Board is now endeavoring to make some new standards, their action being based upon sufficient reasons for making a change, and also for not changing the spelling of any word until it is determined that the suggested spelling is more advisable than the old spelling. Just so, under Scientific Management, the best known standards are used continuously until better have been discovered. The planning department, consisting of the best men available, whose special duty it is to create new standards, acts as does the Simplified Spelling Board, as a court of appeals for new standards, which must pass this court before they can hope to succeed the old, and which must, if they are to be accepted, possess many elements of the old and be changed only in such a way that the users can, without difficulty, shift to the new use. UNDER SCIENTIFIC MANAGEMENT NOMENCLATURE IS STANDARDIZED.--Under Standardization in Scientific Management the standardization of the nomenclature, of the names and of the terms used must be noted. The effect of this upon the mind is excellent, because the use of a word very soon becomes a habit--its associations become fixed. If different names are used for the same thing,--that is to say, if different names are used indiscriminately, the thing itself becomes hazy, in just such a degree as it possesses many names. The use of the fixed term, the fixed word, leads to definiteness always. Just so, also, the Mnemonic Symbol system in use by Scientific Management, leads to swift identification of the subdivision of the classification to which it is applied, and to elimination of waste in finding and remembering where to find any particular thing or piece of information desired. By it may be identified "the various articles of manufacture and papers relating to it as well as the operations to be performed on each piece and the various charges of the establishment." MNEMONIC SYMBOLS SAVE TIME AND EFFORT.--These Mnemonic Symbols save actual motions and time in speaking and writing, and save time in that they are so designed as to be readily remembered. They also save time and effort in that the mind accustomed to them works with them as collective groups of ideas, without stopping to elaborate them into their more detailed form. STANDARD PHRASEOLOGY ELIMINATES WASTE.--As typical of the savings effected by standardization, we may cite a lineman talking to the Central Telephone Office:-- "John Doe--1234 L. Placing Extension Station," This signified-- "My name is John Doe, I am telephoning from number 1234, party L. I have finished installing an extension station. Where shall I go next?" In the same way standard signals are remembered best by the man who signals and are understood quickest by the man who receives them, with a direct increase in speed to the work done. STANDARD MAN IS THE MAN UPON WHOM STUDIES ARE MADE.--The standard man is the ideal man to observe and with whom to obtain the best Motion Study and Time Study data. He is the fastest worker, working under the direction of the man best informed in the particular trade as to the motions of best present practice, and being timed by a Time Study Expert. RELATION BETWEEN THE STANDARD MAN, THE FIRST-CLASS MAN, THE GIVEN MAN AND THE TASK.--The "first-class man" under Scientific Management means the man who is best fitted by nature and by training to do the task permanently or until promoted. The "given man" is the man who is actually put to work at the task, whether or not he is well fitted for its performance. The "task" is that percentage of the standard man's achievement that the given man to whom the task is to be assigned can do continuously and thrive, that he can do easily enough to win his bonus without injuring himself, temporarily or permanently, in any way. WRITING THE STANDARD MEANS FOR CONVEYING INFORMATION.--Under Scientific Management, and even in the early stages of Transitory Management, writing is the standard means of conveying information. All orders, without exception, should be in writing. This insures that the "eye workers" get their directions in the most impressive form; does away with the need of constant oral repetition; eliminates confusion; insures a clear impression in the mind of the giver as well as of the receiver of the order as to exactly what is wanted; and provides a record of all orders given. Putting the instructions in writing in no way precludes utilizing the worker's natural aptitude to learn by imitation, for he also always has the opportunity to watch and imitate the workings of the functional teachers as well as his scientifically taught fellow-workers. THE INSTRUCTION CARD THE STANDARD METHOD OF CONVEYING INSTRUCTIONS AS TO THE TASK.--The records of the work of the standard man are contained in data of the Motion Study and Time Study department. These records, in the form in which they are to be used by the man who is to perform the task, are, for the benefit of that man, incorporated in what is known as the instruction card. DEFINITION OF THE INSTRUCTION CARD.--The instruction card is a set of directions for the man, telling him what he is to do, how he is to do it, how long it should take him to do it, and what he will receive for doing it, and giving him an opportunity to call for, and obtain, assistance the instant that he finds he cannot do it, and to report back to the managers as to how he has succeeded in the performance. The Instruction Card has been called "a self-producer of a predetermined product." COMPARATIVE DEFINITION OF INSTRUCTION CARDS, UNDER SCIENTIFIC MANAGEMENT.--There are three types of Instruction Cards, which may be described as follows: Type One:--Largely geographical, telling

Chapters

1. Chapter 1 2. CHAPTER I PAGE 3. CHAPTER II 4. CHAPTER III 5. CHAPTER IV 6. CHAPTER V 7. CHAPTER VI 8. CHAPTER VII 9. CHAPTER VIII 10. CHAPTER IX 11. CHAPTER X 12. CHAPTER I 13. 1. Management is a life study of every man who works with other 14. 2. A knowledge of the underlying laws of management is the most 15. 3. This knowledge is to be had _now_. The men who have it are 16. 4. The psychology of, that is, the mind's place in management is 17. 5. It is a division well fitted to occupy the attention of the 18. introduction to psychology and to management, can suggest the 19. 2. what we have defined as the "Transitory" plan of 20. 3. management which not only is not striving to be 21. 4. the distinctive name is the Taylor Plan of Management. 22. 1. To enumerate the underlying principles on which scientific 23. 2. To show in how far the other two types of management vary 24. 3. To discuss the psychological aspect of each principle. 25. 1. The relation of Scientific Management to the other types 26. 3. The relation between the various elements of Scientific 27. 4. The psychology of management in general, and of the three 28. 9. Welfare. 29. 2. Appearance and importance of the idea in Traditional and 30. 3. Appearance and importance of the idea in Scientific 31. 4. Elements of Scientific Management which show the effects 32. 5. Results of the idea upon work and workers. 33. 3. Contrary to a widespread belief that Scientific Management 34. 4. Scientific Management fosters individuality by 35. 5. Measurement, in Scientific Management, is of ultimate 36. 6. These measured ultimate units are combined into methods of 37. 7. Standardization under Scientific Management applies to all 38. 8. The accurate records of Scientific Management make 39. 9. Through the teaching of Scientific Management the 40. 10. The method of teaching of Scientific Management is a 41. 11. Incentives under Scientific Management not only stimulate 42. 12. It is for the ultimate as well as immediate welfare of 43. 13. Scientific Management is applicable to all fields of 44. 14. Scientific Management is applicable to self-management as 45. 15. It teaches men to coöperate with the management as well 46. 17. The psychological element of Scientific Management is the 47. 18. Because Scientific Management is psychologically right it 48. 19. This psychological study of Scientific Management 49. 20. Scientific Management simultaneously 50. 2. Halbert P. Gillette, Paper No. 1, American Society of 51. 6. F.W. Taylor, _Shop Management_, para. 16, Am. Soc. M.E., Paper 52. 9. Morris Llewellyn Cooke, _Bulletin No. 5 of the Carnegie 53. 10. F.W. Taylor, _Shop Management_, para. 234, Am. Soc. M.E., Paper 54. 13. Henry R. Towne, Introduction to _Shop Management_. (Harper & 55. 14. F.W. Taylor, _Principles of Scientific Management_, p. 123. 56. 16. F.W. Taylor, _Principles of Scientific Management_, p. 137. 57. CHAPTER II 58. 1. The importance of the study of the individual, and the 59. 2. The difficulty of the study, and the necessity for great 60. 3. The necessity of considering any one individual trait as 61. 4. The importance of the individual as distinct from the 62. 1. The work is more specialized, hence requires more 63. 2. With standardized methods comes a knowledge to the 64. 3. Motion study, in its investigation of the worker, supplies 65. 1. By psychological and physiological study of workers under 66. 2. By scientific study of the worker made before he comes 67. 1. Determining the capabilities of the boy, that is, seeing 68. 2. Determining the possibilities of his securing work in the 69. 11. Rewards must be prompt and provided for all 70. 12. Appreciation must be shown.[11] 71. 2. It is prepared for the particular individual who is 72. 1. When, where, how, and how much is individuality 73. 2. What consideration is given to the relation of the mind to 74. 3. What is the relative emphasis on consideration of 75. 6. What is the effect toward causing or bringing about 76. 9. L.B. Blan, _A Special Study of the Incidence of Retardation_, 77. 11. F.B. Gilbreth, _Cost Reducing System_, Chap. III. 78. CHAPTER III 79. 4. What are the results to the worker? 80. 9. Good health. 81. 1. That the position will be best filled by a very high and 82. 2. That the man is forced to use every atom of all of his 83. 3. That in many cases the work assigned for him to do calls 84. 4. That psychology tells us that a man fitted to perform some 85. 11. poor investigation of workers' special capabilities. 86. 4. assigning competent workers to fitting work. 87. 8. quantity of additional pay that shall be given for doing it. 88. 1. coöperation with the management in obtaining the prescribed 89. 2. the exercise of their ingenuity in making improvements 90. 3. the fitting of themselves for higher pay and promotion. 91. 4. Disciplinarian 92. 8. Inspector 93. 2. a good observer, able to note minute variations of method, 94. 3. a good teacher. 95. 1. the particular place in the field of knowledge in which 96. 2. the change in the type of criticism expected from the 97. 3. the far greater emphasis placed on duties as a teacher. 98. 6. an offense against the system (disobeying orders), falling 99. 1. in doing the work itself, as will be shown at length in 100. 2. outside of the regular working hours, but in connection 101. 2. Decide whether the place can be best handled as one, or 102. 2. the long time job. 103. 5. Gillette and Dana, _Cost Keeping and Management Engineering_, 104. 7. F.W. Taylor, _Shop Management_, para. 221-231. Harper Ed., 105. 12. For excellent example of special routing see: Charles Day, 106. 13. C. Babbage, _Economy of Manufacturers_. p. 172. "The constant 107. 14. F.W. Taylor, _On the Art of Cutting Metals_, Paper No. 1119, 108. 15. C.G. Barth, _Slide Rules for Machine Shops and Taylor System_. 109. 17. Adam Smith, _Wealth of Nations_, p. 2. "The greatest improvement 110. 18. H.K. Hathaway, _The Value of "Non-Producers" in Manufacturing 111. 19. Gillette and Dana, _Cost Keeping and Management Engineering_, 112. 20. Morris Llewellyn Cooke, _Bulletin No. 5, Carnegie Foundation for 113. 21. H.L. Gantt, _Work, Wages and Profits_, p. 120. 114. CHAPTER IV 115. 1. The student will discover, in the books on experimental 116. 2. He will receive priceless instruction in methods of 117. 4. What accurate measurement determines his 118. 3. time for overcoming delays. 119. 3. be willing to coöperate. 120. 2. that all get an ample compensation for what 121. 3. that under them general welfare is considered; 122. 2. the length of time required for a worker to do a 123. 3. the amount of rest and the time of rest required to 124. 3. how best to use them. 125. 4. furnish resulting timed elements to the synthesizer 126. 1. The maintained tension on a belt bears a close relation to 127. 2. The speed of a buzz planer determines its liability to 128. 2. what function it will be best to assign them to and to 129. 2. ability to assign men to the work which they should do, to 130. 3. ability to predict. On this ability to predict rests the 131. 2. The worker's judgment is appealed to. The method that he uses 132. 3. The worker's reasoning powers are developed. Continuous 133. 4. The worker fits his task, therefore there is no need of 134. 5. There is elimination of soldiering, both natural and 135. 1. The worker will become more and more willing to impart his 136. 2. G.M. Stratton, _Experimental Psychology and Its Bearing upon 137. 4. For apparatus for psychological experiment see Stratton, p. 38, 138. 6. Morris Llewellyn Cooke, Bulletin No. 5, _The Carnegie Foundation 139. 12. F.W. Taylor, _Shop Management_, pp. 398-391. Harper Ed., p. 179. 140. 13. President's Annual Address, Dec., 1906. Vol. 28, Transactions 141. 15. R.T. Dana, For Construction Service Co., _Handbook of Steam 142. 20. F.W. Taylor, _Shop Management_, para. 46. Harper Ed., p. 30. 143. CHAPTER V 144. 3. how many elements that it contains are likely to be 145. 4. how many new elements that it contains are likely to be 146. 5. the probable cost of the work after it has been studied-- 147. 6. The loss, if any, from delaying the work until after it 148. 7. the availability of trained observers and measurers, 149. 8. the available money for carrying on the investigations. 150. 2. "labor imposed, especially a definite quantity or amount 151. 3. "a lesson to be learned; a portion of study imposed by a 152. 5. "burdensome employment; toil." 153. 1. The tools and surrounding conditions with which the work 154. 3. The time that the work shall take is scientifically 155. 5. The quality of the output is prescribed. 156. 1. law of no ratio between the foot-pounds of work done and 157. 3. law of classification of work according to percentage of 158. 6. laws that will predict the right speed, feed and cut on 159. 7. laws for predicting maximum quantity of output that a man 160. 8. laws for determining the selection of the men best suited 161. 1. Compare _Mechanical Analysis_. Taylor and Thompson, _Concrete, 162. 9. London, _Engineering_, Sept. 15, 1911. 163. CHAPTER VI 164. 1. to analyze the best practice known into the smallest 165. 4. to synthesize the necessary standard elements into 166. 1. that all management data would be available to 167. 2. that such data, being available also to all standardizers, 168. 4. that, from a study and comparison of the collected data a 169. 8. All of these various savings could be invested in more 170. 9. These more valuable results would again be available to 171. 1. for use as records of successful methods which may be 172. 2. for use by the instruction card clerk in explaining to 173. 3. What to Do. 174. 2. Qualities of Products. 175. 3. Clearing up. This is the only type used by Scientific 176. 1. Because they directly increase output by eliminating 177. 2. Because all surroundings suggest an easy achievement. Knowing 178. 1. It gives the worker immediate knowledge of the prescribed 179. 2. He does not have to worry as to the maximum variation that 180. 3. There is no fear of criticism or discharge for using his 181. 2. The idea of perfection is not involved in the standard of 182. 6. For desirability of standard signals see R.T. Dana, _Handbook of 183. 8. F.W. Taylor, _Shop Management,_ para. 285, Harper Ed., 184. 14. Charles Babbage, _On the Economy of Machinery and Manufactures_, 185. 16. F.A. Parkhurst, _Applied Methods of Scientific Management, 186. 17. H.L. Gantt, paper 928, A.S.M.E., para. 15. 187. CHAPTER VII 188. 3. Increase efficiency. 189. 1. The necessity of having more accurate records of the 190. 2. The necessity for so training the worker, before, as well 191. 2. the work as it is planned out by the managers, and handed 192. 2. to route the worker to the placed materials. 193. 4. Conscious record, conscious programme. 194. 10. Standardized record, standardized programme. 195. 1. One of a gang, unconscious 196. 2. Individual output,--standardized 197. 1. Gillette and Dana, _Cost Keeping and Management Engineering_, 198. 3. Gillette and Dana, _Cost Keeping and Management Engineering_, 199. 5. William James, _Psychology, Briefer Course_, p. 179. 200. CHAPTER VIII 201. 1. "to point out, direct, show;" "to tell, inform, instruct, 202. 3. "to impart knowledge or practical skill to;" "to guide in 203. 1. In that he is required to render reasons in writing for 204. 2. That, as soon as work is placed on the bonus basis, the 205. 2. Teaching of right habits of doing the right methods. 206. 2. Worker has no opportunity under the old industrial 207. 5. Right habits can be instilled. 208. 5. The Management. } 209. 1. Written, by means of 210. 3. Object-lessons: 211. 4. The instruction comes at the exact time that the learner 212. 3. from actual practice in teaching. 213. 10. develops the will. 214. 2. read to oneself aloud--eyes and ears appealed to, also 215. 4. read aloud to one and also read silently by one,-- 216. 5. read aloud, and at the same time copied--eyes, ears, 217. 7. read to one while process is performed by oneself 218. 1. right motions first, that is to say,--the right number 219. 2. speed of motions second, that is to say, constantly 220. 3. constantly improving quality.[25] 221. 2. "The particular one of having images which are not 222. 4. mixed. 223. 3. that he may be sure of advancement with age and 224. 4. that he is sure of the "square deal." 225. 3. Competition with the standard record. 226. 1. During working hours, where the recognition of his 227. 2. Outside the work. He has, under Scientific Management, more 228. 1. A collection of knowledge relating in its entirety to the 229. 2. A definite procedure, that will enable the learner to 230. 12. Opportunities and demands for "thinking" 231. 16. Resultant happiness of worker. 232. 2. H.K. Hathaway, _Prerequisites to the Introduction of Scientific 233. 6. F.W. Taylor, _Shop Management_, para. 289, Harper Ed., 234. 8. W.D. Ennis, _An Experiment in Motion Study, Industrial 235. 9. C.S. Myers, M.D., _An Introduction to Experimental Psychology_, 236. 12. F.B. Gilbreth, _Bricklaying System_, chap. I, _Training of 237. 19. Imbert, _Etudes experimentales de travail professionnel ouvrier, 238. 21. _Ibid._, p. 138. William James, Psychology, Advanced Course. 239. 24. Prof. Bain, quoted In William James' _Psychology, Briefer 240. 30. Attracting the attention is largely a matter of appealing to 241. 39. M.S. Read, _An Introductory Psychology_, pp. 212-213. William 242. 51. For example, see W.D. Scott's _Increasing Efficiency in 243. 52. R.A. Bray, _Boy Labor and Apprenticeship_, chap. II, especially 244. 53. Wilfred Lewis, _Proceedings of the Congress of Technology_, 245. 56. For value of personality see J.W. Jenks's, _Governmental Action 246. 58. Compare with the old darkey, who took her sons from a Northern 247. 61. Morris Llewellyn Cooke, _Bulletin No. 5_ of _The Carnegie 248. 62. A well known athlete started throwing a ball at his son in 249. 63. Meyer Bloomfield, _The Vocational Guidance of Youth_, Houghton 250. 64. A. Pimloche, _Pestalozzi and the Foundation of the Modern 251. 65. Friedrich Froebel, _Education of Man_, "To secure for this 252. CHAPTER IX 253. 1. fines, which are usually simply a cutting down of wages, 254. 3. assignment to less pleasant or less desirable work. 255. 8. Professional standing. 256. 9. coöperative work 257. 3. industrial coöperation. These are defined and discussed at 258. 5. F.W. Taylor, _Shop Management_, para. 310-311, Harper Ed., 259. 6. See also C.U. Carpenter, _Profit Making in Shop and Factory 260. CHAPTER X 261. 3. physical development. 262. 2. Habits, under Scientific Management, 263. 3. Physical development 264. 1. As for habits we must consider 265. 2. General mental development is provided for by the experience 266. 1. Personal responsibility is developed by 267. 2. Responsibility for others is provided for by the 268. 3. Appreciation of standing is fostered by 269. 4. Self-control is developed by 270. 5. "Squareness." This squareness is exemplified first of all by 271. 1. Contentment is the outgrowth of the personal responsibility, 272. 2. The idea of brotherhood is fostered particularly through the 273. 3. The "will to do" is so fostered by Scientific Management that 274. 1. It will educate the worker to the point where workers will 275. 2. It will aid the cause of Industrial Peace. 276. 6. See remarkable work of Dr. A. Imbert, _Evaluation de la Capacite 277. 7. Clark and Wyatt, Macmillan, pp. 269-270. 278. introduction of new, 137.

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