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kind could certainly not be rejected, and even with the 

 second sample this was scarcely necessary. 



The result of the test made with spirit, led to a comple- 

 tely different conclusion. This test will be more fully detailed 

 below. Hereby 0,24% of the ingredients of the first sample 

 were withdrawn and the second sample showed a dry-residue 

 of 0,21%. Since at least 0,55% of unpolished rice of good 

 quality becomes soluble when treated under the same 

 circumstances with strong spirit, these two samples of rice 

 must be considered as totally unsatisfactory. 



This last conclusion was completely confirmed by experi- 

 ments on polyneuritic rice-birds. 



Of three diseased birds which were fed with the first 

 sample, one became so much worse in one day that normal 

 food had to be given to keep it alive. The diseased condition 

 of the other birds remained pretty well stationary during 

 one week, but after about 12 days it seemed that there 

 was some improvement. However, after the same diet had 

 been continued a few days longer, the polyneuritic symptoms 

 again broke violently out on both test-animals. 



Three other diseased birds which were fed on the second 

 sample behaved in a manner which scarcely showed any 

 difference from the first named birds. The general impression 

 made by this second group of birds was however some- 

 what more unfavourable, although it was only in the course 

 of the second day that the condition of one of them 

 became so much worse that it was desirable to discontinue 

 further experimentation. With the other birds, the symptoms 

 remained almost stationary longer than 7 days, and it was 

 14 days before there was apparent improvement. Immediately 

 after this recovery, the symptoms again broke out with 

 great violence. 



When by using unpolished rice of good quality, and also 

 by the use of gaba, polyneuritic rice birds were completely 

 cured within one or at the most two days, there was no 

 doubt that both the Loemadjang kinds of rice, notwith- 



LXXIV 12k. 



