506 



THE INDIA RUBBER WORLD 



April 1, 1921 



THE EDITOR'S BOOK TABLE 



"ESTATE Ttl'BBKR. ITS PREPARATION, PROPERTIES AND 

 Testing." By Dr. O. De Vries. Director of the Central Rubber 

 Station, Buitenzorg, Java. Drukkcrijen Ruygrok & Co., Batavia, 

 1920, Paper. 649 pages. 6 by 9;i inches. 



THIS Ti.MELV voLVME by a recogiiizetl authority on plantation 

 rubber treats systematically the preparation of plantation rub- 

 ber from late.x to final product, and indicates the methods necessary 

 to obtain good, uniform and cheap rubber. 



There are chapters on the treatment of latex preliminary to 

 coagulation : the theory and practice of coagulation ; the structure 

 and properties of the coagulum and the importance and composi- 

 tion of serum : the details of preparation of crepe and sheet rub- 

 ber. Other chapters relate to smoked sheet and crepe; keeping 

 qualities of rubber and defects that develop ; the general properties 

 of lower grades ; the Brazilian method of preparation ; special 

 methods of preparation ; common but incorrect opinions on rub- 

 ber preparation; methods of testing the physical and chemical 

 properties of crude rubber, and judging rubber from the ex- 

 terior. 



The book ends with a list of publications devoted to rubber 

 and its manufacture and an excellent index of subjects. This 

 book is a valuable contribution to the literature of the technology 

 of plantation rubber. 



"RUBBER MANUFACTURE." BY H. E. SIMMONS, PROFESSOR OF 

 Chemistry, Municipal University of Akron, Ohio. D. Van Nostrand 

 Co., New York. Cloth, illustrated, 149 pages, 7 by II inches. 



Professor Simmons has put into book form his series of articles 

 which appeared in one of the rubber trade journals three years 

 ago. 



In a series of twenty chapters will be found a concise treat- 

 ment of crude rubber, its history, wild and cultivated sources, 

 colloidal relations, preparation, constitution, synthesis and chemical 

 and physical testing. This portion is followed by chapters on 

 the manufacture and use of inorganic fillers, organic accelerators 

 and rubber substitutes, theories of vulcanization and methods of 

 reclaiming rubber. The chapters on rubber manufacturing deal 

 with the preparation of the crude material, and the principles of 

 compounding. In the last two chapters the chemical analysis of 

 manufactured rubber and physical testing of vulcanized rubber 

 are considered. An appendix is devoted to the laboratories and 

 equipment of the Municipal University of Akron, The book is 

 well worth a good index, but has none. 



"TTME.S OF CKYI.ON GREEN ROOK. 1921." THE TIMES OF 

 Ceylon Company. Limited, Times Building, Colombo. Ceylon, Cloth. 

 802 pa?es, 4^5 by 7 inches. 



This volume contains general information on Ceylon, together 

 with an up-to-date map of the island ; also a chart showing times 

 throughout the world when it is noon in Colombo, and directories 

 under divisions— Official and Professional, Mercantile Section, 

 Classified Occupations, Institutions and Clubs, Estates and Com- 

 panies. Men's Section, Ladies' Section, Foreign Directory and 

 Necrology covering the period from 1914 to 1920. 



The information is up to date and its alphabetical arrangement 

 under the main heads enables it to be secured at once. 



"WHAT A COST SYSTEM SHOULD DO FOR YOU." A BROCHURE 

 issued gratis by the Fabricated Production Department of the United 

 States Chamber of Commerce, Washington, D. C. Seven pages, size 

 6 by 9 inches. 



With the gradual resumption of production to meet a reviving 

 demand, and after the post-bellum slackening has run its course, 

 competition is again certain to become keen, and war-time margins 

 but a memory. It follows then, in the opinion of the national 

 board of commerce that the industry that will best survive in its 

 class will be the one that not only produces a superior article and 

 is adept in marketing its products, but which can demonstrate its 



profit through sheer efficiency and an accurate accounting of costs. 

 Most business concerns tail, it is claimed, because they either do 

 not know or they disregard the question of costs. Some excellent 

 headway has already been made in the rubber industry in conduct- 

 ing such records, but there are still many in the trade who have 

 not yet given the matter the attention its importance merits; and 

 to them is tlie brochure commended. 



"SAFETY LESSONS FOR AUTOMOBILE DRIVERS." COPY- 

 righted and published by the National Safety Council, 168 North 

 Michigan avenue, Chicago. Complete in a set of twelve lessons and 

 twelve illustrated safety bulletins obtainable from the Council for a 

 nominal charge. 



A concise scries of safety precepts to lessen hazards to automo- 

 bilists and the general public, covering details of car construction, 

 tire and other equipment, and the loading and handling of all 

 kinds of pleasure and business motor vehicles. 



Even an experienced motorist needs to be reminded that a blow- 

 out, especially on a front tire, and when speeding may upset a car 

 or cause some other serious accident; that running with a soft 

 tire is dangerous, especially on a front wheel, and if the rims are 

 of the quick-demountable type, as steering is made harder, extra 

 power is needed, and the tire may even be thrown off the rim; 

 that split rims need to be securely locked and wedges screwed 

 tight ; that over-inflation is unsafe, as tires testing 60 pounds on 

 inflation may show 70 pounds after a hard run on a hot road ; 

 that where wire wheels are used they should be securely locked, all 

 spokes tight, and wheels well alined ; and that wheels should 

 never be locked on applying brakes, as it increases tendency to 

 skid and subjects tires to severe road grind. 



"CRAIN'S MARKL7 DATA BOOK AND DIRECTORY OF CLASS, 

 Trade and Technical Publications." By G, D. Crain, Jr., 417 South 

 Dearborn street, Chicago, Illinois. First edition, 1921, cloth, 462 pages, 

 6 by 9 inches. 



This book contains a most complete list of trade publications, 

 accompanied by interesting data on the trade reviewed, all 

 arranged alphabetically. Among the pubHcation listings those 

 appealing to our readers are : Automotive, Chemical Industries 

 and Tires and Rubber, 



The book has three indices : Advertisements, Markets and 

 Publications, 



NEW TRADE PUBLICATIONS 



THE Adamson Manufacturing Co., East Palestine, Ohio, 

 manitfacturer of automobile accessories and specialties, has 

 issued pamphlets descriptive of AdarasOn portable vulcanizers for 

 tires and inner tubes ; foot accelerators for Ford cars ; brake-shoes 

 for Ford, unlined and lined ; and a simple and effective oil cooler 

 for Fords which is readily bolted to the bottom of the engine 

 crank case. 



BiNNEY & Smith Co., 81 Fulton street. New York, manu- 

 facturers of carbon black for rubber manufacturers, has issued 

 a brochure entitled "The Black Art of Rubber Compounding, 

 Chat No. 2," illustrated by half-tone reproductions of micro- 

 photographs, which should prove of much interest to rubber 

 manufacturers. 



The Jeffrey M,\nufacturing Co., Columbus, Ohio, has just 

 issued Catalog No. 257 on Jeffrey standardized scraper conveyers. 

 The catalog features both single and double strand conveyers 

 designed to handle all kinds of loose products in manufacturing 

 and mining industries, power plants of rubber mills, sugar mills, 

 retail coal yards, canning plants and practically all other indus- 

 tries. It is profusely illustrated, contains numerous tables of 

 specifications and dimensions, and, with the instructive descriptive 

 matter, easily enables not only an engineer but a purchaser more 

 or less unfamiliar with engineering problems to select the right 



