586 



THE INDIA RUBBER WORLD 



[August 1, 1914. 



continued daily until Tuesday, July 7. Forty-one papers on a 

 wide variety of subjects pertaining to the rubber industry and 

 prepared by experts from every rubber country in the world, 

 including manufacturing as vifell as rubber producing countries, 

 were presented at this conference. It was hardly possible within 

 the time limits to have all these papers read and discussed, but 

 the following twenty-seven were read and considered during the 

 sessions : 



SECTION I. 



DESCRIPTIVE, HISTOKICAL AND GENERAL. 



"Kelaiitan as a Rubber Producer." — By Mr. T. Clifton Ilutch- 

 ings. 



SECTION II. 



CULTIVATION AND BOTANICAL. 



"Rubber in Cochin-China." — By M. Cremazy. of Indo-China. 



"The Best and Most Economical Methods of Tapping." — By 

 Mr. W. F. de B. Maclaren. 



"The Physiology of Latex Formation in Hevca." — By Mr. R. 

 H. Lock, Sc.D. 



"A Comparison Between Wild and Plantation Grown Rub- 

 ber." — By Mr. A. Irving. 



"Manuring of Rubber." — By Mr. H. Hamcl Smith. 



"The Cultivation of the Rubber Vine in Central Africa." — By 

 Dr. E. de Wildeman. Jardin Botanique de I'Etat, Brussels. 



"The Systematic Study of Rubber Production." — By Mr. R. N. 

 Lyne, F.L.S., F.R.G.S., Director of Agriculture. Peradeniya, 

 Ceylon. 



SECTION III. 



COMMERCIAL, STATISTICAL AND FINANCIAL. 



"Some Aspects of Plantation Rubber." — By Mr. E. L. Killick. 

 SECTION IV. 



RUBBER PREPARATION. 



"The Coagulation of Rubber Latex."— By Mr. N. W. Barritt, 

 B.A., International Institute of Agriculture, Rome. 



"The Chemical Coagulation of Rubber Latex." — By Mr. Fred- 

 erick Kaye, A.R.C.Sc. 



"The Depolymerization of Rubber (Chemical Study of Raw 

 Rubber)." — By Mr. A. van Rossem, Delft. 



"The Vulcanization of Rubber by Ultra- Violet Rays."— By. M. 

 G. Bernstein, in conjunction with M. Helbronner (but separate 

 paper). 



"Contribution to the Study of Rul)l>er Solutions Vulcanized by 

 Ultra- Violet Rays." — By M. Helbronner, in conjunction with M. 

 G. Bernstein (but separate paper). 



"The Kinetics of Vidcanization." — Mr. Herbert Skellon. 



SECTION V. 



RUBBER PROPERTIES AND TESTING. 



"Variability."— By Dr. Philip Schidrowitz. 



"The Proteids in Rubber and in Rubber Latex." — By Dr. 

 Fritz Frank. 



"The Advantages and Defects of Plantation Rubber." — By Mr. 

 W. A. Williams, General Works Superintendent, North British 

 Rubber Co. 



"American Methods of Testing Mechanical Rubber Goods." — 

 By Mr. D. E. Douty, United States Conditioning & Testing Co. 



"Some Experiments on the Direct Determination of Mineral 

 Matter in Rubber Mixings." — Bv Messrs. B. D. Porritt, B.Sc, 

 F.IC, Chief Chemist, and R. Wheatley, B.Sc, A.I.C., Research 

 Chemist, North British Rubber Co., Ltd. 



"Determination of Bitumen in Rubber Mixings." — By Mr. B. 

 D. Porritt and Mr. E. Anderson, Assistant Chemist, Xorth Brit- 

 ish Rubber Co., Ltd. 



"The Influence of Temperature on the Physical Properties of 

 Rubber." — By Mr. P. L. Wormley, United States Bureau of 

 Standards, Washington. 



SECTION VI. 



LABOR AND ORGANIZATION. 



"Bonus Schemes for Managers and -Assistants on Plantation 

 Rubber Estates." — By Mr. P. J. Burgess. 



SECTION VII. 



RUBBER MANUFACTURE, 



"Effects of Acids and .Mkali in l\ubl)ers. More Especially in 

 Relation to Reclaimed Rubbers," — liy Mr. VV. G. Martin, Experi- 

 mental Dept., North British Rubber Co., Ltd. 



"On Rubbered Balloon Fabrics." — By Mr. Guy Barr, B.A., 

 B.Sc, National Physical Laboratory, Teddington. 



"Synthetic Rubber ; Researches into the Commercial Prepara- 

 tion of Isoprene." — By ]\I. Gaston Chardet. 



"Plastides Derived from Oil Oxides." — By M. Gaston Chardet. 



OTHER SOCIAL FEATURES. 



French Day (Tuesday, June 30) was the occasion of the 

 official Government reception and the visit of M. Paul Cam- 

 bon, French Ambassador to England, to the exhibition. His 

 Excellency was received by a number of commissioners and 

 delegates, including Prof. Perrot and Dr. Gatin, secretary of the 

 French section. M, Cambon congratulated the commissioners in 

 charge of the French section on their exceedingly effective display. 



Perhaps the most brilliant of the receptions was that given 

 by the Rubber Growers' Association on the evening of June 

 30, to which the entire floor and balcony of the hall were devoted. 

 The guests were received at the entrance to the main hall and 

 a great majority of them after a general inspection of the 

 attractions offered, repaired to the tennis court and listened to 

 an attractive program of English folk songs ; after which they 

 adjourned to the balcony, where a sumptuous collation awaited 

 them, and were further entertained during the evening by the 

 Royal Artillery Band. 



Another very successful event was the dinner given by the 

 West India Committee on July 1, at the Royal Agricultural 

 Hall, at which Sir Ernest Shackleton was the guest of honor. 

 After the loyal toasts had been duly drunk the chairman pro- 

 posed the healtli of Sir Ernest Shackelton and success to his 

 expedition. 



The reception by the State of Sao Paulo including a moving 

 picture exploitation showing a number of scenes reflecting agri- 

 cultural conditions in this section, was very much enjoyed. To 

 individualize any particular reception in Sao Paulo section is 

 rather difficult, as it was the scene of a continuous succession of 

 receptions, inasmuch as it was persistently active in the serving 

 of a delicious brand of coffee peculiar to the Sao Paulo district. 



A reception of the Sudan government commissioners was held 

 on Thursday, July 2, and an illustrated address on the Sudan 

 was given by Mr. William Herbert (iarrison, after which a tea 

 was served. 



THE BIG BANQUET. 



The Fourth International Rubber Banquet was held on the 

 evening of Tuesday. July 7. at Princes' Hall restaurant. Piccadilly. 

 W., and was the concluding event of the social features incidental 

 to the exhibition. After the customary loyal toasts Sir Henry 

 Blake, the chairman, gave an exhaustive resume of the purpose 

 and scope of the exhibition, incidentally paying a tribute to the 

 effective work of t!ie delegates to whose energy and capacity 

 was largely due the opening of the exhibition in every way 

 complete at the appointed hour. The responses to these re- 

 marks were made by Prof. Perrot, M. Leplae. and Mr. O, W. 

 Barrett, In proposing the toast of the International Rubber 

 Exhibition, Mr. Arthi:r Lampard alluded to the fact that the 

 exhibition was responsible for the cementing of international 

 friendships. One of the most effective speeches was made by 

 Mr. Alex. Johnson on behalf of manufactured rubber, and his 

 remarks were exceedingly well based and received with great 

 applause, Mr. F. Pegler responded also for manufactured 

 rubber and was well received. ."Xmong the other prominent 

 speakers were Mr. Xorman W. Grieve, who proposed the toast 

 "Success to the Rubber Industry," to which responses were made 

 bv Mr. J. A. Mendes. of Para, and Mr. Cyril Baxendale. vice- 



