Anti-Cat Serum 



173 



III. Antisera for bloods of Carnivora. 



(1) Tests ivith Anti-Cat Serum. 



In my paper of 1, vir. 1901 (p. 381) I reported having failed to 

 obtain an anti-cat serum by treating rabbits in the usual manner by 

 intraperitoneal injections with cat serum. The rabbits were treated 

 until they had received as many as 8 and 9 injections respectively, but 

 there was no appearance of precipitin. Two further attempts were 

 made which failed for the reason that a fresh cat serum was used for 

 continuing the treatment begun with old serum, the fresh serum 

 proving toxic. Discouraged by these results, I made no further attempts 

 in this direction. Uhlenhuth (25, vii. 1901) was more successful, how- 

 ever. He does not state that he had any particular difficulty in 

 obtaining this antiserum. He tested it on the 24 bloods cited on 

 page 172, with the result that only cat serum dilutions were found to 

 react, the antiserum being obtained, as usual, from rabbits. Stimu- 

 lated by Uhlenhuth's success, I again made an effort to obtain anti-cat 

 serum, finally succeeding, although I only obtained a weak antiserum. 

 My results are summarized in the following table : 



Reactions 



5(26«/„) 

 1(7„) 



74PRmATEs 67 6(8"/o) 1 (i %) 



27 Chiroptera 27 



13 Insectivora 13 • . 



92 Carnivora 



19 Felidae (8 spec.) 2 



14 Viverridae (11 spec.) 12 



1 Proteleidae 1 



2 Hyaeiiidae (1 spec.) 



20 Cauidae (14 sijcc. & ? races) 17 



4 Ursidae (3 spec.) 3 



7 Procyonidae (5 spec.) 5 



19 Mustelidac (10 spec.) 16 3 



4 Pinuipedia (3 spec.) 4 



63 EODENTIA 61 1 



73 Ungulata 72 1 



2 Cetacea 2 



13 Edentata 12 1 



24 Map.supialia 24 



1 monotremata 1 



324 AvEs (incl. 4 eggs) 319 1 



41 Reptilia 41 



10 Amphibia 10 



22 Pisces 22 



6 Crustacea 6 



10(52 0/o) 

 1(7„) 

 1 



1 1 



3 

 1 

 1(H„) 1(14,,) 



1* 



/(I 



2(10% 



9 

 

 



89 \ 

 14 

 50 

 100 



15 }.31-5 7„ 

 25 

 28 

 16 







3 



1 







7 









 0-3 



















other mam- 

 mals than 

 Carnivora 



4 7o 



