XIMENES. ii -f- 97 pages. Bureau of Business Research, University of New Mexico, Albuquerque, New Mexico. 1955. $2.00.
LITERATURE Microfilm Cameras for Libraries Free microfilm units m a y permit a larger n u m b e r of research libraries to extend t h e i r lending services O MALL
SCIENCE
LIBRARIES n o w m a y
be able to provide microfilm copying services. A n e w microfilm camera of Atherton Seidell and H. F . Flemer is being given free, according to t h e de velopers, to research libraries. The condition is that these libraries must undertake to supply microfilms in place of interlibrary lending of original pub lications. Seidell is well known in the chemical field as one of the nation's foremost compilers of solubility data (C&EN, March 3 1 , 1952, page 1 2 8 5 ) . I n one of Seidell's most recent works, "Solu bilities of Inorganic and Organic Com pounds," he used microfilms almost ex clusively to make up t h e book. Says Seidell, "Use of microfilms is about the only way to collect scattered research data conveniently and accurately." Seidell's codeveloper of the new microcamera (if it must b e purchased it's cheaper than most o n t h e market, according to t h e developers), H . F . Flemer is also an authority on micro films. H e is presently in charge o f the photoduplicating service of the XJ. S. Department of Agriculture. Seidell says that one must search in many different libraries to find many rare scientific publications of restricted distribution. T h e List of Periodicals Abstracted by Chemical Abstracts, with a Key to Library Files contains the titles of about 6500 periodicals. About 3600 of these are owned b y not more than five of the 2 9 0 libraries of which the holdings are recorded, savs Seidell. Of t h e 290 libraries, only about 7 2 do microfilm copying, says Seidell. About forty three percent make o r can have made photostat copies o n d e mand. Thus, Seidell says only 2 5 % of the libraries now are able to supply a microfilm copy, and less than half of them, a photostat copy. With the new microfilm camera t h e illumination, time of exposure, aper ture of the lens, and development of the exposed film are all definitely fixed in advance. So, Seidell says, no adjust ments of the unit are needed t o get good microfilms of the usual library publications. Microfilm copying, there fore, may b e performed b y even library employees with little training. 104
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F o r the reader, t h e one disadvantage of microfilms is the need of magnifying equipment for reading the reduced text, according to Seidell. Because of this, he a n d his coworker have de veloped a small hand viewer that is be ing sold for $2.00. The viewer has an eyepiece which gives enough magnifi cation for reading microfilms of quite high* reduction ratios. T h e viewer meets t h e needs of individual rather than- multiple use, which the high cost of projectors usually makes necessary. T o find o u t more about the micro film equipment, Seidell can b e reached at 3301 Connecticut Ave., X . W., Washington, D. C.
N E W BOOKS British Scientific and Technical Books; A Select List of Recommended Books Pub lished i n Gxeat Britain and the Common wealth in the Years 1935 to 1952. xi + 364 pages. Hafner Publishing Co., 31 East lOth St., New York 3, Ν. Υ. 1956. $11.25. Classified bibliography, author and subject inde:x, and list of publishers. Arcs in I n e r t Atmospheres and Vacuum: Papers presented at the symposium on arcs in inert atmospheres and vacuum of the electrothermics and metallurgy division of The Electrochemical Society, April 3 0 aoid May 1, 1956, San Fran cisco, Calif. W. E. Kuhn, editor, viii -f- 188 pages. John Wiley & Sons, Inc., 440 Fourth Ave., New York 16, Ν. Υ. 1956. $7.50.
Review of Coal Tar Technology. Jan. to June 1956. Vol. VIII, Part 1. 82 pages. The Coal Tar Research Association, Ox ford Road, Gomersal, Nr. Leeds. 1956. $1.50. Cyclone Dust Collectors. Engineering Re port Prepared for American Petroleum Institute, vii + 67 pages. American Petroleum Institute, Division of Refining, 50 West 50th Street, New York 20, Ν. Υ. 1956. $3.00. Applied Metallurgy for Engineers. COLM
S, BURTON.
xi -f-
407
MAL pages.
McGraw-Hill Book Co., Inc., 330 West 42nd St., New York 36, Ν. Υ. 1956. $7.50. This text for survey courses in metal lurgical technology for nonmajors seeks to develop the metallurgical principles in volved in casting, metal working, welding, heat treatment, and powder metallurgy. It also aims to study these manufacturing processes from an engineering viewpoint, including the metallurgical factors that control selection of suitable processes, and the influence of the processes on the final products. Engineering Mathematics. KENNETH S. MILLER, xii -f- 417 pages. Rinehart & Co., Inc., 232 Madison Ave., New York 16, Ν. Υ. 1956. $6.50. Gives determinants and matrices, integrals, linear differential equations, Fourier series and integrals, LaPlace transform, network theory, random functions. Rubber Chemicals. J. VAN ALPHEN, in cooperation with W. J. K. SCHÔNLAU and M. V A N D E N T E M P E L .
Χ +
164
pages. 1956. $5.00. Gives wherever possible the chemical names and formulas, the trade names in various countries, the names of suppliers, and t h e properties of the materials described. Engineering Uses of Rubber. A. T. McPherson and Alexander Klemin, editors. 490 pages. Reinhold Pubhshing Corp., 430 Park Ave., New York 22, Ν. Υ. 1956. $12.50. Includes rubber products for engineering uses, compounding, general engineering properties of rubber, the design of rubber mountings, deterioration of rubber from use with age, rubber in civil engineering, chemical engineering, and electrical en gineering; tires, belt conveyors, rubber in automobiles, rubber and aviation, specifi cation and inspection of rubber products, Proceedings of the Conference on Chemi rubber products for new or special prod c a l Reactions in Urban Atmosphere. ucts, and molecular structure and me L-ewis H. Rogers, editor. ix -+- 135 chanical properties of polymers. pages. Air Pollution Foundation, 704 South Spring St., Los Angeles 14, Calif. Organic Analysis, Vol. III. John Mitchell, Jr., I. M. Kolthoff, E . S. Proskauer, A. 1956. $5.00. Weissberger, editors, viii + 546 pages. Interscience Publishers, Inc., 250 Fifth Tar>les of Chemical Kinetics: HomogeneAve., New York 1, Ν. Υ. 1956. $11.50. omis Reactions; Supplement 1 to National Bureau of Standards Circular 510. xiv New methods and procedures reflecting -j— 472 pages. Superintendent of Docu the modern trend in organic analysis by ments, U. S. Government Printing Office, emphasizing functional group analysis and Washington 25, D . C. 1956. $3.25. instrumental techniques. ASXM Standards on Benzene, Toluene, Out of the Test Tube: The Story of Chemistry, 5th edition revised and ex XLylene, Solvent Naphtha. Prepared by panded. HARRY NICHOLLS HOLMES. A.STM Committee D-16 on Industrial χ -f- 313 pages. Emerson Books, Inc., Aromatic Hydrocarbons and Related 251 West 19th Street, New York, Ν. Υ. Vlaterials. ν -\- 66 pages. American 1957. $4.50. Society for Testing Materials, 1916 Race Cut to the pattern of "Mr. Everyman." St., Philadelphia 3 , Pa. 1956. $1.50. This edition contains new material on 1953 Directory of New Mexico Manufac strategic raw materials, on atomic power, turers. Compiled by VICENTE T. and atom and hydrogen bombs.
