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to more than 0,4%, even where there is an insufficient 

 quantity of silver-skin, we were less fortunate in our searches 

 for a kind of rice, which, in the same way as the Minbury 

 Jail rice, was sufficiently effective although showing a P 2 5 

 amount more of less below 0,4%; — a kind of rice, therefore, 

 of whicli the kernel contained so little P 2 5 , that an exactly 

 sufficient quantity of silver-skin would not appear to be able 

 to raise its content to 0,4%. 



From the fact that we did not happen upon such a kind 

 of rice amongst the few which were in any measure properly 

 investigated in this direction, we can not in the least draw 

 the conclusion that such kinds of rice do not exist, or even 

 that they are very exceptional, for in the natural course of 

 affairs the finding of them is too much influenced by chance. 



Although the attempts to find here a kind of rice such 

 as was brought into question by the Siamese investigators 

 may have hitherto failed, there are however several indica- 

 tions that such kinds of rice are not so very unusual and 

 even that they are more frequently met with than the 

 Loemadjang and Kramat kind. With the following facts and 

 considerations as foundation, there is no doubt that within 

 a short time there will be more direct proofs of the same 

 kind as the first and as yet only instance given in literature 

 in which the correctness of the standard agreed upon is 

 refuted. (Compare with Appendix). 



The most forcible argument in this respect is the following. 

 During the process of converting the gaba into unpolished 

 rice containing '/ 3 of its original quantity of silver-skin 

 the P 2 5 content becomes, as a rule, smaller. But this is 

 not always the case, for with a complicated substance as 

 rice appears to be, fixed rules can scarcely be established. 

 With the Idjoean and Boeloe rice which were collected 

 in June 1913 this was certainly the case. The unmilled 

 Idjoean rice contained 0,62% PA and the unpolished rice 

 product only 0,52%. The diminution of the PA content of 

 the Boeloe rice, milled at the same time, was from 0,67 to 



