356 



Antisera for Atnphihia, Pisces 



These quantitative Tests, as in the case of those made with antisera 

 to Avian egg-albumins, are almost entirely in accord with the quali- 

 tative experiments. 



III. Anti- Amphibian Serum. 



Tests with Anti-Frog I'^eruni. 



This antiserum was prepared by Dr Nuttall by the intraperitoneal 

 injection of Frog's blood {Rana teniporaria) into Rabbits. 



70 Blood Sera 

 31 Eeptilia 



15 Amphibia \ 



15 Pisces 

 9 Crustacea 



This was a moderately powerful antiserum. Good reactions occurred 

 only with two specimens of the blood of the Frog {Rana temporaria) 

 and moderate with four examples of Frog's blood (1 Rana temporaria 

 and 3 R. tigrina). All other tests were negative (see p. 210). 



IV. Anti-Fish Serum. 



Tests with Anti-Amniocoetes Serum. 



This antiserum was prepared by the intraperitoneal injection into a 

 Rabbit of Ammocoetes serum, which had been dried on filter-paper, and 

 dissolved out by means of salt solution. 



Percentage 

 of positive 

 X + + reactions 





 

 8 

 8 

 100 

 



