Document a44wbgKZ1bJ87J6gLqeEgYN6X

)BER, 1939 759 lucrion capacities of the various aes. jgard to the De Laval and Sharpies 'separators, it might be mentioned Ifhis construction was used in the separator about 50 years ago olshcim patent) and is still a jfc type. Spite of the fact that the writer ' that there could have been more |al information and drawings given is that great credit is due the author if efforts. Bartholomew Viola.14 For and Against i Editor: ,ve just finished reading the comnon15 from Mr. Sanford A. Moss ihed in the August issue, and may that I agree heartily with Mr. fan saying that the editor can be .of the papers he has published on ' engineering subjects. I would go further, however, and say that, opinion, the editor can also be of the papers he has published on ic and social matters, sure that it would be very difficult whether the so-called nontechnical which have been published in :cal Engineering in the last ars ``have had an effect on the [`s progress worth the cost to the r of printing them' I do feel very jly however, that unless knowledge social and economic needs of the better understood, and that by ppeople, and unless such needs are jered in all phases of human acrivlierc may be grave danger of failure *lize the full benefits of technical which engineers have made Ible. haps I may be pardoned for quoting critique of Professor Cabot of University in which he was disj papers presented at the Seventh Rational Management Congress dcalith administrative and financial ols: Imiy say: first, that the business ad aptor his shown xhilicy of x high |h dealing with what might be called hi* narc material." The existence of largedustry proves this. Second, he is beBg to recognize that "the society within la" and "the great society" oucsidc of it Imposed of human beings about whom he OC know enough. Buc he is making i by applying scientific methods of obtion ami research to the "society within Third, in his dealings with "the tty" he still goes largely by "smell." oklyn, N. Y. Member A.S.M.E. anical Engineering, August, 1939, In act, in this field he closely resembles a blind dog in a meat shop. Fourth, he has violated the principle of balance,............ by allowing himself to become engrossed in the fascinating techniques of.............administra tion, while he has neglected the social and human problems of his business, which are its foundation. Under these circumstances, he muse now focus his attention on his social problems for che purpose of developing ade quate techniques of observation and treatment. Only thus can he restore the balance which is an essential condition of the life of large-scale business. In other words, my plea to you, Mr. Editor, is that you continue your present policy of publishing not only excellent papers on strictly engineering subjects, but likewise excellent papers on social and economic matters. A. A. Talmaob.10 14 Budget Department Head, Ebasco Services, Inc., New York, N. Y. Mem. A.S.M.E. To the Edftor : I certainly want to add my small voice to the protest raised by Sanford A. Moss in his letter15 in the August issue which objeccs to the printing of so many articles dealing with sociology. In these days of brain trusters, when one must spend so much time combatting ill-advised and crack-pot legislation, it is very disconcerting to slip into an easy chair with your favorite magazine and find that it, coo, is wandering far from its proper field into what at best is only theory. " Please give us more articles dealing with the definite things in which we arc interested so that our magazine may nearer live up to its title Mechanical Engineering. M. E. Kune.17 17 Sales Engineer, Union Lumber Company, San Francisco, Calif. Mem. A,S.M.E. REVIEWS OF BOOKS Medicolegal Phases of Occupational Diseases attempt to prepare a treatise on industrial hygiene but has presented in outline form in Fart 1 some of the more important Mbdicolegal Phases of Occupational Dis eases. By C. O. Sappington, Industrial Health Book Co., Chicago, 1939. Cloth, aspects of the problem in industry in cluding the causes of occupational dis eases, standards of permissible exposure, 5l/s X 81/: in., 405 pp., illus., charts, procedures for conducting industrial- tables, $2.75- hygiene surveys and technical methods Revibwed by Theodore F. Hatch1 of air analysis, and finally the control of occupational disease. IN 192S only ten states made any pro vision for occupational-disease cover The remaining three parts have to do with insurance, medical, and legal age under their workmen's compensation problems. laws. By 1938, however, che number For insurance carriers, tbe author had doubled and several additional states recommends the same specific approach had under consideration proposed laws to the evaluation of health hazards that respecting health hazards in industry. arc followed in basic scientific scudics of During this same ten-year period the hazards with close cooperation between number of states engaged in the study and the engineering, medical, claim, and other control of industrial health hazards in departments of the organization. It is creased many fold. emphasized that physical inspections In the early part of the decade under alone do nor yield sufficient information consideration, before new legislation had ro permit a final evaluation of occupa been adopted, there was frequent recourse tional disease hazards. The importance co the courts for the settlement of claims of the application of preventive measures with respect to occupational diseases can never be overemphasized by the in which were not covered by existing surance carrier. compensation laws. The function of the industrial physi Because of these rapid changes in and cian is to discover and treat occupational extension of state laws, much interest diseases and to establish and conduct the centers around the medicolegal phases of necessary program of medical prevention occupational diseases. Hence, the present of such diseases. An important activity volume is a valuable contribution to the in connection with the latter is, of course, literature. Dr. Sappington has made no the routine physical examinations of 1 Associate Dust Control Engineer, Division of Industrial Hygiene, N. Y. State Department of Labor, New York, N. Y. Mem. A.S.M.E. workers and their placing in occupations suited to their physical conditions. While the industrial physician is not ex- 760 E:Mechanical pected to become an engineer, he must be familiar with and recognize the working conditions which lead to the develop ment of occupational disease and must also have knowledge of the basic engi neering measures of prevention. From the medicolegal poinc of view the physician muse be capable of estab lishing che causal relation between health damage on the one hand and working conditions oa the other. Another im portant medicolegal function of the physician is to evaluate the extent of dis ability in occupational-disease cases for the proper adjustment of compensation claims. The section devoced to legal questions includes ac the outset a discussion of four questions which must be answered before intelligent consideration can be given to che merits of a given claim. Briefly these arc: 1 Do the working conditions present an actual health hazard? 2 Has the employee a real occupa tional disease, as he claims? 3 Was the disease contracted while working for the employer againsr whom the claim is made? .4 Is the employee disabled from the effects of the disease for which he asks compensation? The author makes a plea for the ra tional approach to the problem based upon these simple questions and considers further the procedure for preparing evi dence which will yield definite answers to them. Many valuable suggestions are given with respect to the nature of medi cal and other testimony required in the proper presentation of a case. The section on legal matters is com pleted with a review of existing compen sation laws and progress in occupationaldisease legislation. Seven appendixes are included in the volume, the contents of which are selfevident from their dries: occupational record; abstracts of state laws; sched uled diseases; abstracts of legal decisions; legislative suggestions--American Bar Association; suggested schedule law-- American Public Health Association; digest of Workmen's Compensation laws by staces. Books Received in Library ATM (Archiv fur technisches Messen), Lieferungen 94-96, April-Junc, 1939. R. Oldcnbourg, Munich and Berlin, 1939. Paper, 8 X 12 in., illus., diagrams, charts, tables, 1.50 mi each. Three numbers of a monthly publication containing classified articles upon various types of apparatus and methods for technical measurements. Certain numbers also contain descriptions of specific instruments manufactured by German companies. Das ABC fur dbn'Modhllbau. (Wcrkstattbiichcr. Heft 72.) By E. Kadlec. Julius Springer, Berlin, 1939- Paper, 6X9 in., 63 p., tables, diagrams, 2 rm. This handook gives a concise, practical description of patternmaking methods, intended for the workman. Materials and tools, molding methods, and the construction of patterns ana cores arc considered. Many special forms of pacccrns are described. The book is profusely illustrated. Atoms in Action, the World of Creative Physics. By G. R. Harrison. William Mor row & Co., New York, 1939. Cloth, 6X9 in., 370 pp., illus., diagrams, $3-50. This is an unusually able and authoritative presentation of what modern physicists chink and do, and of the more important applications of their work in daily fife. The book is eminently readable and interesting, as well as accurate, and is endorsed by eminent physicists. Der Chemie-Ingknibur, edited by A. Euckeu and M. Jakob. Bd. 3, Chemische Opcracionen. Part 4, Hochdruckoperationcn, by D. M. Ncwitr, G. Schneider, G. Natra, and G. Robcrti. Afcademische Vcrlagsgesellschafc, Leipzig, 1939. Cloth and paper, 7 X 10 in., 267 pp., illus., diagrams, charts, tables; cloth, 28 rm; paper, 26 rm. This latest addition to a set of reference works for the chemical engi neer covers high-pressure operations. The several chapters, each written by an authorin'. deal with the following topics: The calcula tion and construction of high-pressure appara tus; the characteristics of high-pressure reac tions in liquid phase; autoclave technique; high-pressure Drocesses for continuous opera tion, including the use of catalysts; and the fundamentals and industrial operation of the cracking process. Dm Dampfkbssel und Fbdbrdngbn EjnSCHUESSL1CI1 HrLTSEINKiCHTUNGEN, 2 Volumes. (Sammlung Goschcn, Bd. 9 and Bd. 521.) By W. Marcard. Walter de Gruyter & Co., Berlin, 1939. Cloth, 4X7 in., diagrams, charts, tables; part 1,136 pp.; part2,138 pp., 1.62 rm each. These two small volumes pro vide a brief, but comprehensive account of modern steam-boiler practice. Volume one covers the theoretical principles, combustion, and heat transfer; volume two, the types of boilers, superheaters, feedwater heaters, and air heaters, as well as boiler-plant design. Diseasbs of Electrical Machinery. By G. W. Stubbings. Chemical Publishing Co., New Yotk, 1939. Cloth, 5 X 8 in., 219 pp-, diagrams, $3. This small manual is intended for power-plant engineers and electricians. The defects chat arise in the operation of elec trical machinery arc discussed, their underlying causes explained, and practical directions given for their location and rectification. Engineering Physical Metallurgy. By R. H. Heyer. D. Van Nostrand Co., New York, 1939. Cloth, 6X9 in., 549 Pp., illus., diagrams, charts, tables, $4.50. The aim of this book is to provide treatment of the sub ject, intended for those making their first acquaintance with engineering metals and alloys. A wide range of materials is dis cussed, including pure metals and alloys; also processes of hot and cold reduction, heattreatment, welding, machining, etc. Each chapter has a bibliography. Frasen, edited by Wande gesellschaft, Siegmar-Schoni' 1939. Julius Springer, Bet" 12 in.,89 pp.,illus., tables, dia rm. Milling machines fo this memorial publication of machine works. The first fo milling theory, rules for pro* and feed and speed calculaao and 6 contain descriptions of , of machines and supplement manufactured by the company. Gasoline Automobile. (Ed cation Series.) By B. G. Ell, Consoliver. Fifth edition.' Book Co., New York and Cloth, 6 X 10 in., 754 pp., ill charts, tables, $4. This wcll-kn to present the fundamental ptin upon which motor vehicles are'; structed, and operated. In tfi attention is given to the au, Diesel engine and che low-com' ignition oil engine. The matiit and automatic transmissions ha" and the book brought up to date; Great Britain, Department 6{[ Industrial Research, Methods- TBcrtON of Toxic Gases in Ind No. 3, Sulphnr Dioxide. 1938.) Leaflet No. 4, Benzene Vapour;- 3d. Leaflet No. 5, Nitrous Fu: pp., 3d. His Majesty's Stab London. Paper, 6 X 10 in., dia (Obtainable from British Libra tion, 50 Rockefeller Plaza, Ncwi 3, $0.75; Leaflet 4, $0.10; Leafle. These leaflecs contain approved; testing the freedom from various closed places which workmen enter. The directions are full atf have proved satisfactory under jr ditions. ~ Great Britain, Department of : Industrial Research. Report?4 His Majesty's Stationery Office, to' Paper, 6 X 10 in., 203 Pp-, charts, tainablc from British Library of** 50 Rockefeller Plaza, New York, T~ report reviews the work of the y mittees and associations and so ? eral survey of the scientific and research work carried out in Gt: during the year. Appendixes givs of the departments and associatio officers, lists of the publications <j expenditures, etc. ' Handbook of Chemistry, com edited by N. A. Lange, assistedForkcr, with an Appendix of Ma Tables and Formulas, by R. S. * Third edition, revised and cnlar dusky, Ohio, Handbook PublisT 1939. Cloth, 5X8 in., 1543 pp.,! 249 pp., diagrams, charts, tables,;, useful book contains an unusually) collection of chemical and physical:, by chemists, engineers, and physic* data have been taken from reliable so' are presented in convenient form reference. This edition has been < revised and materially extended. Handbook of Hydraulics. ByH., Third edition. McGraw-Hill Book York and London, 1939- Leather, 4 617 pp., diagrams, charts, tables, $ outstanding feature of this edition is,) ing to chc preface, "the complete re ~ extension of the two chapters oa o" nels, one dealing with uniform flowother with nonuniform flow, addr