352 Antisera for Reptilia 



(2) Tests with Antiserunt, to Siwke's Egg-albumin. 



This antiserum was obtained by the intraperitoneal injection into a 

 Rabbit of diluted Snake's egg-albumin (Tropidoiwtus natriai). 



Percentage 

 Material tested , ? + + [^^ 



23 Egg-Albumins 



(a) 11 Birds' egg-albumins 7 4 . 3G 



(fc) 2Beptile 1 i 1 



(c) 3 Amphibian ,, 3 . . o 



(d) 7 Fish 7 . ... o 

 127 Blood Sera 



,15 Chelonia 9 5(33:,,) 1(77,,) . . 40 



59 Beptilia / ^ocodUia 3 1 25 



12 Lacertiha 4 3(15%) 5(41/,,) . .-66 



^28 Ophidia 14 1 11 (39/,,) 2(7/ ) 50 



17 Amphibia 17 . o 



39 Pisces 38 1 2 



12 Arthropoda 12 . . . . o 



This was a very powerful antiserum giving an immediate dense 

 clouding, followed by a very large precipitum, with a dilution of snake 

 serum. Moderately well-marked reactions were obtained with specimens 

 from all the sub-classes of the Reptilia, especially the Ophidia, as well 

 as with the diluted egg-albumin of the tortoise. 36 % of the Birds' 

 egg-albumins also reacted with this antiserum. 



(3) Tests with Anti-Python Serum. 



This antiserum was obtained by the intraperitoneal injection into 

 a Guinea-pig of Python's serum (Python molimis). The serum was 

 obtained from an animal which had died, and was very slightly con- 

 taminated with bile. 



Percentage 



Material tested 9 of positive 



T reactions 



18 Kgg-Albnmhis 18 ..... o 



(11 Bird, 1 Eeptile, G Fish) 



127 Blood Seru 



,15 Chelonia 14 1 .... 7 



4 Crocodilia 4 ..... o 



58 Eeptilia \ , T 



11 Lacertiha 11 ..... o 



^28 Ophidia 24 . 4 ... 14 



18 Amphibia 18 ..... Q 



39 Pisces 39 ..... o 



12 Arthropoda 12 ..... o 



