3 6 
To anyone looking forward a little, one of the most interesting 
exhibits in th,e show was r the vulcanised and coloured rubber 
exhibited by Mr. M. K. Bamber, Government Chemist in Ceylon. 
Mr. Bamber acts, not on the coagulated and macerated rubber, but 
directly on the latex with thd necessary re-agents, and then 
coagulates, giving a perfect intermixture. 
T^e coagulated rubber can then be worked up into whatever 
is required in the ordinary way, and finally heated, when it 
vulcanizes. One of the most promising of his exhibits was the 
mixture of fibre and rubber. The fibre, cleaned, is soaked in 
sulphurized rubber milk, ceagplated and then dried, and finally 
subjected to hydraulic pressure and vulcanized the result being 
'-blocks suitable for pavement, etc. By this method rubber can also 
be turned out of any colour desired, and the colour will not wash or 
crack off — a great advantage for children’s toys. One of the most 
noteworthy features of the Exhibition was a series of daily lectures 
on the various parts of the rubber industry — cultivation, tapping, 
shipment to London, vulcanization, catch crops, pests, etc., etc,, 
and these lectures, with the ‘reports of the judges, description of 
the machinery, and other things, are now being put together into a 
book which will form a standard treatise,* to be in the hands of 
everyone interested in rubber! 
* The Ceylon Rubber Exhibition Handbook by J. C. Willis, M.« K. Bamber, 
and E. B. Denham. To be obtained about the end of the year from Dulau & Co. , 
37 Soho Square, Messrs. Wyman & Sons, Limited, Fetter Lane, London, for 
7s. 6 d. net. « 
(r 
