Brill: Infusorial Earth Extract 



205 



Table VII. — History of chickens treated with one capsule of D on alternate 

 days (three times weekly). 



Days Total 

 before number 

 onset of of days 

 poly- | onpol- i 

 neu- ! ished 

 ritis. rice. 



1 capsule of D daily 



do 



None 



Num- 

 ber of 

 treat- 

 ments. 



Total 

 loss in 

 weight 



Results and remarks. 



Living- at end of experi- 

 ments. 



Improved, but died fifteen 

 days later. 



In healthy condition at end 

 of experiments. 



Table VIII. — History of chickens treated with one capsule of E on alternate 

 days (three times weekly). 



No. of 

 chick- 

 en. 



Days 

 before 

 onset of 

 poly- 

 neu- 

 ritis. 



Total 

 number 

 of days 

 on pol- 

 ished 

 rice. 



Treatment. 



Num- 

 ber of 

 treat- 

 ments. 



Total 

 loss in 

 weight. 



Results and remarks. 



1 



2 

 3 



4 



105 

 81 



122 



83 



81 



100 



1 capsule of E daily 



none 

 none 



none 



P.ct. 

 23 



46 



Improved, but died ten days 



later. 

 Alive at end of experiments. 

 Died without any extra 



treatment. 

 Alive at end of experiments. 





do 





DISCUSSION 



The results obtained show that the curative principle is ex- 

 tracted from the hydrolyzed extract of rice polishings by means 

 of infusorial earth, although not by as small a proportion of the 

 earth as was found by Seidell when he used Lloyd's reagent with 

 autolyzed yeast liquor. This partial extraction is undoubtedly 

 due to the character of the extract. 



Extract A, given on alternate days in doses of 3 cubic centi- 

 meters, did not protect the chickens from polyneuritis for the 

 entire period of one hundred eighty-six days. Chicken 1 con- 

 tracted polyneuritis on the eighty-seventh day, chicken 2 died 

 on the seventy -third, while 4 became sick on the fifteenth day of 

 its confinement or the one hundred thirty-first day of the experi- 

 ment. An administration of 3 cubic centimeters of A on alter- 

 nate days should be sufficient to protect these chickens. It is 



