322 



MATSUZIRO TAKENOUCHI 



TABLE 3, A 

 Showing the details regarding the studies on the weight of the thymus of the test rats 



1 The weight of the ovaries of these two rats, of same age, differ as 2:1. 

 This kind of difference may be caused often by ovulation and by the formation 

 of corpus luteum. 



2 The calculated values are based on table 72, The Rat (Donaldson, '15). 



d. Repetition of the same plan of experiment with the second and 

 the third antithymus serum {rabbit, group A) 



The same plan of experiment just described was repeated with 

 the second and third antithymus serum, and the respective data 

 v/ill be given here briefly. 



The second antithymus serum was obtained by the immuniza- 

 tion of a healthy male rabbit (rabbit, group A, no. 2) with the 

 thymus of albino rats, beginning with an injection on August 27, 

 1918. The injection was repeated three times until the blood 

 was taken September 21, 1918. The autopsy of this rabbit 

 showed nothing pathological. The separated serum, carboUzed 

 as usual, was used for the experiments. 



