July i, 1908.] 



THE INDIA RUBBER WORLD 



335 



THE EDITOR'S BOOK TABLE. 



GOUVERNMENT GENERAL DE L'AFRIQUE OCCIDENTALE FRAN- 

 CAISE. Rapport Agricole pour I'Annee 1906. Far Yves Henry. Faris: 

 Augustin C"halamel. 1907. [Faper 8vo. Fp. 310.] 



■ I ■ H E modern French colonial service appears to be based upon 

 ■*■ an exceptionally intelligent system, and though it has 

 briefer history than the colonial administrations of some other 

 powers, good results have been realized and constant improve- 

 ment is apparent. The economic developments of the colony 

 is always to be kept prominetly in mind, and at the same time 

 the administrators work without friction with the natives, whether 

 in Africa or in the Far East. Notable work has been done by 

 Monsieur Yves Henry, director of agriculture for the colonies 

 and inspector of agriculture for French West Africa. The pres- 

 ent volume, relating to the work in the latter administration, 

 devotes no little space to the subject of rubber — the native and 

 exotic species, the work in experimental gardens, the planting sta- 

 tions established, and other like matters. French West Africa 

 is rich in rubber, both as to the number of species of value and 

 the area covered by them, and already this region yields an in- 

 creasingly large amount for export — now equal at least to the 

 output from the Congo Free State. The purpose of the govern- 

 ment is to extend this production, while conserving the native 

 trees and plants, and also to stimulate the rational planting of 

 rubber, one means to which has been the establishment of prac- 

 tical rubber planting schools. Monsieur Henry has been in 

 charge of this work for a number of years, and what he has 

 accomplished entitles him to be regarded as among the most 

 notable workers to-day in the field of intelligent exploitation of 

 crude rubber. 



MORE. A STUDY OF FINANCIAL CONDITIONS NOW PREVALENT. 

 By Georee Otis Draper. Second edition. Boston: Little. Brown & Co., 

 1908. [Cloth, umo. Pp. I -I- 246. Price, $1.] 



The majority of financial literature, says the author of this 

 book in his preface, is written by men who have never made 

 actual value in product, never handled material funds, never 

 known the peril in large financial risks, the joy of substantial 

 material success, or the bitterness of severe financial loss. Mr. 

 Draper, long known as the secretary of the Draper company, of 

 Hopedale, Massachusetts, is at least a man of practical training 

 in a good school. His book, instead of being a treatise, is a 

 series of plain talks on business based upon experience, and 

 forms a readable book, whether from the standpoint of wage 

 earner, or w-age payer, or buyer or seller. Naturally every man 

 who works wants more for his effort, every man who buys wants 

 more for his money, every man who owns property would like to 

 add to it. What is the condition of life, therefore, that gives to 

 every class what it seeks within the bounds of reason, and at 

 the same time does not take unjustly from any other class. Mr. 

 Draper has offered no sure rule for bringing about this ideal 

 condition, but the reading of his book would help most people no 

 doubt to a clearer understanding of many of the problems in- 

 volved in present day business and industry. 



ZLTR GE3CHICHTE DER KAL'TSCHL'KFORSCHUNG Zu-nni- 



mcnstellung der Wissen schoftlichen X'eroflfentlichen aus dem Gesamtgebiet 

 des Kautschuks. \'on A. Slingervoet Ramondt. Dresden: Steinkopff & 

 Springer. 1907. [Paper. Svo. Pp. 70.] 



This brochure may be described as a contribution to the his- 

 tory of scientific research regarding india-rubber, in the shape of 

 a compendium of the scientific publications covering all subjects 

 relating to rubber. The author is connected with the chemical 

 laboratory of the technical high school at Delft. There are chap- 

 ters on the nature and treatment of latex, the physical and chemi- 

 cal characteristics of rubber, vulcanization, analyses, and so on. 

 It is a compact resume of facts and suggestions, with no fewer 

 than 330 references to authorities, a list of which fills 13 pages at 

 the close of the work, embracing publications as recent as the end 

 of 1907. A useful reference book for any one interested in fur- 

 ther research work on rubber who is familiar with German. 



RUBBER PLANTING IN MEXICO AND CENTRAL AMERICA. By 

 Pehr Olsson-Sefifer, PH.D. [Reprint from The Agricultural Buttctir of the 



Straits and Federated Malay States. Singapore: Kelly & Walsh, 



Limited- 1907. [Paper. Svo. Pp. 31.] 

 SEEKING RUBBER IN BOLIVIA AND OTHER ELASTIC EXPERI- 

 ENCES. By (Juincy-Tucker. [Reprint from the Boot and Shoe Re- 

 corder.] Dorx-hester, Mass.: The Author, 1908, [Paper. 8vo. Pp. 4^. 

 Price, $1.] 



IN CURRENT PERIODICALS. 



_ Les Productions \'egetales des Colonies Frangaises. Produits d'Exuda- 

 tion. Caoutchouc. By Eugene Charabot. (Relates to rubber producing spe- 

 cies in the French colonies, particularly in Africa, with statistics of pro- 

 duction.] =L' Agriculture pratique des pays Cliauds, Paris. Vltl-59 (Feb. 

 •08). Pp. 95-' ■4- 

 ^Constitution de Peuplements de Caoutchouc en Afrique Occidentale. By 

 Yves Henry. [Relates to the progress of planting rubber in French West 

 Africa.] :=L' Agriculture pratique des pays Chauds, Paris. VUI-59 (Feb. 

 '08). Pp. 126-141. 



Ceara Rubber in Portuguese East Africa. [By W. H. Johnson.] = 

 Bulletin of the Imperial Institute, London. V-4 (1907). Pp. 401-422. 



Un Arbre a Caoutchouc dans le Nord du Tonkin. [Bleekrodea Tonki- 

 nensis.] By O. IJihray.^^ Journal d' Agriculture Tropicale, Paris. VIII-79 

 (Jan. 31, '08). Pp. 15-18. 



LVber die Gewinnung von Kautschuk aus gctrockneten Kautschukpflanzen. 

 Jy Dr. Paul Alexander and Dr. K. Bing.=: ZPer TropenpHanzer, Berlin. 

 XII-2 (Feb., '08). Pp. 57-68. 



A NEW ORGAN OF THE OIL TRADE. 



IN view of the exccUeiice of the French journal Lc Caoutchouc 

 ^ ct la Gutta-Pcrcha it was to be expected that a tiew journal 

 emanating from the same offices would give evidence of the 

 same high standard of editorship. The first issue of such a new- 

 journal, Lcs Maticres Grasses, dated May 25, an organ of scien- 

 tific and industrial interests, covers a wide field, while the list 

 of contributors announced includes experts in connection with 

 the various oils, resins, glues, soaps, varnishes, dyes, colors and 

 so on — in respect both to their sources or component materials 

 and their preparation and industrial uses. The names of several 

 of these writers, either as chemists or as botanists, are familiar 

 in the literature of india-rubber; for example. Dr. De Wildman, 

 an authority on .\frican rubbers, who deals with palm oil. The 

 market and trade reports are particularly full. The publisher 

 and editor is Monsieur A. D. Cillard fils. 49, rue des Vinaigriers, 

 Paris. The terms are 20 francs yearly in France and 25 francs 

 abroad. 



FLEXIBLE MOLDS FOR TIRE WORK. 



I F an indestructible flexible mold could be evolved it would 

 ■'• find a very wide use. Of course, the cloth used in 

 wrapping hose and tubing is of the nature of a mold and 

 has been in use for many years, but it burns up in time. No 

 doubt it has been suggested many times that if, instead of 

 wrapping this around the hose, it could be woven in several 

 plies and slipped on and off, it would save much time. That, 



I-'ro.-^t's Tire Vulc.\xi2ixg Mold 



however, would be thoroughly impractical. In the line of 

 tire repairers, however, something of this sort has been 

 attempted and is apparently successful. Harvey Frost & 

 Co., of London, who are patentees of very many types of 

 vulcanizers for tire repair work, have brought out a flexible 

 mold which is really a short tubular canvas jacket arranged 

 to go over the tire, the ends to be bound down by metal 

 clamps. Inside of the jacket is the tire cover, inside of 

 that in turn is a metal mandrel made on a slight curve, with 

 openings allowing the steam to be let between mandrel and 

 the cover. 



