June 1. 1915.] 



THE INDIA RUBBER WORLD 





The Editor's Book Table. 



niiMiAl Mill S 01 CHEMICAL ANALYSIS. VOL, 111. 



1 parts. Edited b) George Lunge, Ph.D. English translatii 



bv Charles V Keane, D.Sc., Ph.D. D. Van Nostrand & Co., New 



York, 1 1 irge octavo, 1,125 pages. $18 net foi uo, parts.] 



TI1IS well known reference work is highly esteemed by 

 analysts in everj bi h ol chemical technology because 



ii represents t< sted results bj many of the leading tech- 

 nologists in chemical and allied industries, consolidated bj com 

 pctent editors into a well-planned, systematic whole. Seventy 

 three collaborators .ire represented in the present volume. 



Rubber chemists will find Volume III oi special interest b< 

 cause it contains a section "i fiftj odd pages divoud to rubber 

 .iii.l rubber m < > ' ■ > 1 s . In tin- sections treating , ii ( )ils, Waxes, 

 Resins, Textile Fibres ami Inorganic Colors, thej » ill also find 

 much valuable information mi matters intimately connected with 

 the manufacture of rubber goods. 



The Li .me nt ^ nt the volume are as follows : 



I'art 1 Mineral ()ils. Lubricants, Fats, Waxes, Organic Prepa 

 rations, India Rubber, Vegetable Tanning Materials, Leather ami 

 Inks. 



Part 2 — Sugar, Starch ami Dextrin; Alcohol, Spirits and 

 Liqueurs, Vinegar, Wine, Brewing Materials ami Beer; Taper. 

 I extile Fibres and Inorganic Colors. 



A brief description of the nature ami technologj of each 

 material precedes the detailed account ami discussion of its ap- 

 propriate analytic methods. In the section devoted to the con- 

 sideration nt the rubber industry. Messrs. Frank, Marckwald and 

 Caspar) present a clear and concise account of their subject un- 

 der four general divisions, as Follows: 



A — The sources and chemical nature of crude rubber and its 

 examination previous to manufacture. This is followed by de- 

 tailed analytic methods for the determination of resin, moisture, 

 ash. rubber (by tetrabromide and nitrosite methods) and pro- 

 tein, concluding with remarks on hot and cold vulcanization. 



B — Accessory materials of the industry. \ list of about sixty 

 of the more important compounding ingredients is given and 

 classified int" organic and inorganic fillers. Regarding certain 

 of these materials useful data are given, particularly concerning 



substitutes, both while and brown or black. Especial considera- 



ton is given to the chemical nature of oil substitutes, their manu- 

 facture and a scheme for their analysis is outlined. 



L — The analysis of rubber goods. Under this head it is noted 

 that the correct interpretation of a complex anlysis of manu- 

 factured rubber is largely a matter of experience, since lew of 



the analytic results correspond directly with substances originally 



Forming part of the mixing. The reasons indicated are. first, 

 that aualvsis can divide up the rubber only into chemical groups, 

 and not into raw materials; and. second, rubber mixings of any 

 verj greal simplicity rarelj occur. A scheme of statement for 

 an analysis is shown in which all percentages are calculated upon 

 the original material 



Very full and explicit methods of analysis are detailed for 

 every determination required, with references to original sources. 

 This is followed by a general scheme of analysis in a series of 

 fmir tables, with notes and comments on interpretation and 

 statement of results. 



The examination of cable insulation, in conformity with speci- 

 fications, is treated separately. The section closes with pertinent 

 remarks on analysis of proofed fabrics, rubber solutions, de- 

 termination of specific gravities and microscopic examinations. 



D — Empirical tests applied to rubber goods. These are classi- 

 fied and described as chemical and physical. 



A list of nineteen such tests is given in detail. Several im- 

 portant machines of European manufacture, designed for tensile 

 testing, ate illustrated. 



In closing the authors treal brief)] ol gutta percha and balata 



and giv« a series ol tests foi those materials. I he work 1- 

 \ided with an appendix of tables foi reference, drawn from the 



text, also with a well-arranged index oi sul attei and oi 



authors' names. 



I III UTILIZATION Ol WAST] PRO Koller. 



Sei i i, 1915, Sci i Grei 6c Son, 1 .on- 



don; D i [Cloth, 8vo., . [ ■ illus* 

 trated. Prici luty.] 



I be author gives brief accounts of wast,, recovery in many 

 Inns of manufacture, compiled from a vast hulk of technical 



literature. 



["hi Scope "I the work is very large, covering 59 different 

 subjects. \atnrallv in so ambitious an attempt the matter is 

 rather hint and to an extent largely historical. It is impossible, 

 also, in preparing a work of this sort, to compete with specialists 

 in their up-to-date treatment of specific subjects. On India rub- 

 ber, fm example, the chapter on reclaiming adds nothing to the 

 existing knowledge; indeed, when one considers the pi'' 

 made in the last year or two, it can hardly be called up to date. 

 \ work of this sort, however, has its value in gathering together 

 brieflj much that has been done in utilizing the world's wa ti 



NEW TRADE PUBLICATIONS. 



A NEW V00RHEES CATALOG. 

 The new catalog of the Yoorhees Rubber .Manufacturing Co., 

 of Jersey City, New Jersey, is more than ordinarily interesting. 

 'is SO pages arc well ami generously illustrated, ami tin 

 scriptions clear in showing the qualities which make Voorhees 



rubber g Is particularly desirable in various \w -. Bi 



rubber belting, hose and packing, which occupy chief promin- 

 ence, gaskets, tubing, mats, stair treads and all the many items 

 that go to make up a complete line of mechanical rubber goods, 

 are given mention. This company has a special department de- 

 voted to the manufacture of candy molds, while another of its 

 inme unusual productions, and one especially interesting at this 

 time, is the rubber shell for artillery practice. In addition to 

 tin 29 item — with 52 sub-items— contained in the index, the 

 companv is prepared to furnish estimates on any special line-. 

 novelties or articles for unusual or peculiar requirements 



THE FIRESTONE CALENDAR FOR 1915. 



The Firestone Tin & Rubber Co., of Akron, has issued its 

 yearly calendar, which, following its usual style, commences with 

 February and ends with January. It is in the form of a large 

 four-page panel hanger, each page containing a calendar for 

 three months besides a reproduction in colors of a painting by 

 E W. Pits. m. the artist to whose work the Firestone calendars 

 owe much of their very genuine charm. Each panel calls at- 

 tention to a particular type of tire — the Firestone non-skid for 

 pleasure vehicles, the motorcycle tire, the carriage tire and the 

 truck tire — and each painting reproduced includes a vehicle 

 equipped with one of these types of tires in most appropriate 

 sin n lundings. 



DOMINION TIRES AND TIRE ACCESSORIES. 

 Under this title the Canadian Consolidated Rubber Co., Lim- 

 ited, has published a handsome catalogue of 411 pages revering 

 practically all rubber articles used in connection with auto- 

 mobiles, cycles ami motorcycles. The "Nobby" and "Chain" 

 non-skid and the "Dominion" plain tread tires are illustrated 

 and described in detail. A weight schedule instruct- ear owners 



