Once Hard-to-get BEHEI
ACII
C22 Chain X.engtli Fatty Acids
Computers, Their Operation and Applications
BEHENIC ACID ^
[ENIC DID
E. C. BERKELEY and LAWRENCE WAINWRIGHT.
366 pages. Reinhold Publishing Corp., New York 22, Ν. Υ. 1956.
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BEHENIC ACID
BEHENIC ACID
BEHE AC I
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Now in Carloads
Chemifats that put into y o u r products
This highly pure, saturated, long-chain acid, now available in production quantities, will help you develop interesting new products. ADM Behenic Acid can be esterified with fatty alcohols to produce high melting point waxes. Because it stabilizes emulsions this material is ideal for soaps, lotions, cosmetics, lubricants, chemical intermediates, esters, stabilizers, and specialties. Write for complete information. jimiti H y d r o g e n a t e d a n d Distilled Fatty Acids a n d Stearic Acid . . . Hydrogenated Vegetable, Fish, Sperm O i l a n d Tallow . . . H y d r o g e n a t e d Castor O i l . . . Stearyl, C e t y l , O l e y l Alcohol . . . Sperm Oils a n d Spermaceti . . . Behenic Acid . . , Erucic A c i d . . . H y d r o x y stearic Acid . . . Olefins . . . Hydrocarbons.
Archer·
AVERAGE
S P E C I F I C A T I O N S
Titre A c i d Number Iodine N u m b e r Saponification Number A v e r a g e Molecular W e i g h t Specific G r a v i t y @ 100725°C Color ( 5 V Ï " Lovibond)
Daniels·
Midland
6 9 t o 73"C 168 t o 174 4 (Max.) 169 t o 175 320 t o 332 0.8286 M a x . 25 Y/2.5R
c o m p a n y
CHEMICAL PRODUCTS DIVISION TOO I N V E S T O R S B U I L D I N G . M I N N E A P O L I S 2 , M I N N E S O T A For further information, circle number 80 A on Readers' Service Card, page 123 A 80 A
INDUSTRIAL A N D ENGINEERING CHEMISTRY
book in a new, rapidly evolving field. In general, this is a volume which all those engaged in the fascinating field of polyester resins cannot afford to be without.
$8.00.
Reviewed by ARTHUR
ROSE, Dept. of Chemical Engineering, Pennsylvania State University, Uni versity Park, Pa. P ractically everyone is interested in automatic computers at the present time. "Computers, Their Opera tion and Applications," by Berkeley and Wainwright, is an excellent book for those who are not directly engaged in automatic computing but who desire or need to know what has happened in this active area in the last several years. This volume is also useful as a reference for those with specialized, occasional, or peripheral interests and contacts with automatic computers. T h e book is not intended for the experts who are regularly and actively en gaged in the field, but even most of them will find interesting sections that express a stimulating point of view. Easy to read, clear, and completely nonmathcmatical, the book is a sequel to Berkeley's "Giant Brains or Machines That Think." I n formation in the earlier volume is not repeated, and the authors have made this later volume self-sufficient so that it can be followed without reference to the earlier volume or other background material. A good index, a glossary, a roster of organizations that do automatic computation as a service, and a roster of manufacturers of automatic com puting machines are included. There is a list of books and general journal references, which is very useful be cause of the widely scattered litera ture and advertising on computers. Only two sections cite specific refer ences. Also novel and noteworthy is the section on the recognition of areas where computers may be applied, as well as that on attitudes of prospec tive buyers or users.
