44 
pass through the meshes of the muslin in the Macadam strainer 
but in the latter all substances of higher specific gravity than 
caoutchouc or water are eliminated. For the removal of scraps of 
bark Mr. BambER’S machine is not so suitable as the weight of 
these particles is not sufficient relative to the caoutchouc and water 
to throw them out. The fact that in the London market a slight 
grittiness to the feel in rubber showing the presence of minute 
grains of sand is considered to lower its value points to the gain of 
using a machine that will eliminate these small particles which may 
pass through the sieve. 
The classes for coagulating methods both mechanical and 
chemical produced very few entries. 
'The class for machines for rolling and washing, with rollers 
prepared either for crepe or sheet, did not contain any novelties 
chiefly because no rubber machinery manufacturers from Europe or 
America sent exhibits. 
The Michie-Golledge machine awarded the gold medal, is a 
revolving drum within which centrifugal and centipetal forces are 
exerted to quickly induce coagulation was seen daily working in 
the show yard and performed its functions very efficiently and 
expeditiously. 
Latex poured into this machine was in less than five minutes 
fcoagulated and removed in large masses ready for treatment in the 
washers and rollers. 
A prize was awarded' to Mr. W. J. Bird, Duckwari Estate, for 
a method of inducing coagulation by means of Cream of Tartar 
(Tartaric acid). The results from the use of this reagent are 
excellent and it seems to be more efficient than the acetic acid 
which is generally used. 
A screw press fbr "preparing block rubber had been put up by 
Messrs. Brown DAVlbSON & Co. and crepe rubber was treated in 
this with very successful results. The block was pronounced by the 
rubber judges to be of the highest quality. This press was the 
only blocking machine shown and received a medal. 
The attendance at the Show and the interest taken both in the 
Exhibitions and in the lectures and discussions which took place 
almost every day, was excellent in regard to as Ceylon residents 
but the number of planters and others attending from other rubber 
growing countries was considering the importance of the Exhibition 
remarkably meagre. 
Had manufacturers, planters and others interested in rubber 
cultivation in various parts of the world realized how much was 
to be learnt from attending the conferences and examining the 
Exhibits at Peradeniya there is no doubt that many would have 
been present. Probably not more than 2o representatives of foreign 
countries attended South India, Malaya and Central Africa being 
represented, 
J. B. CARRUTHERS. 
