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normal figure. During the first treatment at any rate a 

 considerable loss of refuse, ^ 23%, and in connection with 

 this fact, a loss of about 2 / 3 of the silverskin, seems to be 

 unavoidable. Notwithstanding this considerable amount of 

 refuse, 5,4% of unhusked grains (gaba) were found in the 

 Idjoean unpolished rice which was obtained. This proportion 

 of unhusked grains can however be reduced to 1% by using 

 better and less wornout machines, such as are now in use 

 in the husking mill "Tjikampek", which at present supplies 

 rice for the army. Fortunately however this great loss of 

 silverskin does no harm to the product of the first treatment, 

 in so far that this proved to contain a satisfactory surplus 

 of ingredieDts which give protection against beri-beri. 



This remaining one third of the silver-skin can be further 

 removed by suitable machines in different fractions. Thus 

 the afore named mill "Tjikampek" furnished three more 

 middle products between the real unpolished rice and 

 completely polished white rice, of which at least the first 

 two proved to be sufficiently effective. It is better however 

 in preparing unpolished rice to limit oneself to the first 

 treatment and in this manner to obtain an excess of protec- 

 tive effect. 



Samples of all the products obtained by the different 

 treatments in the husking-mill at Lemahabang, also the 

 refuse, were taken for the intended investigations. Where 

 these could not be carried out within a certain time, the 

 collected material was in good time protected against 

 undesirable changes by the use of chloroform or ether. 



II. Experiments with regard to Taste. 



At that time, many and often strongly expressed objections 

 were made to the use of unpolished rice : this was generally 

 eaten with aversion; when cooked, it looked unsavory, was 

 sticky; that several people felt an oppression in the stomach 

 after eating it, etc. It was therefore of great importance 



