1478 
ABE EW: 
BS =e Mean 
ES | She | loss of \Polyneuritis after: Daily food (forced). 
SEN eee ES ns weight 
Zo ° 
4 1506grm. 24.4 proc.| 14—22 gem. 18 d. 70 grms. of pol. rice 
| | 
5 1533.5, 25:65, WA — 238 IES OON: bn » + 10 grms. of lactose 
41013057 1 1853 1819)" ee 1825." 560) % Ps „ +10 , albumin 
A WMS65" STEE LAOS INI GONE yy eee 5S | vofolWolfvs 
| | | 
5 1550 „ (23.7 , \14—23 „ 18.8, | 70grms. amyl. maranthae 
See Misty, oe 23150 24, BLA NAE GOM +10 grm. of alb. 
By 430 0 ETA AN 93g AGO P + 5 , ololiv. 
the other hand the same exchange in the amylum-diet exerts only 
little influence upon the percentage of the loss in weight, but 
lengthens the period of ineubation. 
Anyhow, it is evident that the deficiency alone of fat or of 
protein in the polished rice and in the starch cannot exclusively be 
responsible for the loss in weight during the period of incubation. 
As observed before, there is no mistake about it that an important 
factor in this process is the incidental disturbance in the mechanism 
of the digestion viz. the retarded and ultimately checked discharge 
of the crop; also, as far as freely-fed animals are concerned, the 
loss of appetite. Now the former can be set to rights again by 
supplying rice-polishings, yeast and the like, as we and many other 
investigators have made out. In so far the emaciation is indirectly 
dependent on a deficiency of antineuritie substances. 
Regarding the possibility of any chemical anomaly of the digestion 
we noticed the following. We found that uncooked polished rice was 
digested badly from the very beginning. A microscopical examination 
made out that the faeces of the animals contained much undigested 
starch and consequently, when stained with iodin, exhibited, even 
for the unaided eye, an intense blue coloration. It did not become better 
when finely ground rice was given; cooked rice contrariwise yielded 
starch-poor faeces. This was the case also, when the fowls were fed 
on raw unhusked rice or on raw undermilled rice; macroscopically 
the faeces did not then show any starch-reaction with iodin ; micros- 
copically no or hardly any starch was detected. The question, there- 
fore, arose whether the defective digestion of the uncooked polished 
