:>42 Antisera for Birds' Eyys 



reactions were obtained with the egg-albumin of a tortoise, and with 

 a Chelonian blood (tortoise). Three very slight cloudings were also pro- 

 duced with the sera of three tortoises. No sign of a reaction was seen 

 with any other specimen of egg-albumin or serum tested. 



(3) Tests with Anti-Fowl s-Egy Serum (I). 



This antiserum was prepared by intraperitoneal injections of Fowl's 

 egg-albumin into a Babbit. 



Percentage 

 of itositive 

 Material tested *? * + + results 



24 Egg-Albumins 



() 13 Birds' egg-albumins 1 (7/ ) 3(23"/,,) 3(23",',,) 3(23%) 3(23"/ u ) 1)2 



(6) 2KeptiIe ,,11 50 



(c) 3 Amphibian ,,3 ... 



(<J) 6 Fish ..... 

 128 Blood Sera 



fl5Chelonia 9 3(20%) 2(13"/,,) . 1(7",',,) 40 



4 Crocodilia 2 1 . . l . 50 



I 13 Lacertilia 12 1 .... 7 



(,28 Ophidia 26 1 1 ... (i 



18 Amphibia 17 1 .... 5 



38 Pisces 3 S . . . . 



12 Arthropoda 12 ..... 



00 Beptilia - 



IS"/,, 



This was one of the most powerful of the antisera to egg-albumins. 

 Its maximum effects were produced on the Avian egg-albumins, but 

 well-marked reactions occurred with the egg-albumin of the grass snake, 

 and with the blood sera of three Chelonians (Tortoise (2), Turtle), one 

 crocodile, and one snake. Very feeble reactions occurred with three 

 Chelonians, one lizard, one snake, and one Amphibian (Toad). 



(4) Tests with Anti-Fowl' s-Egg Serum (II). 



This antiserum was prepared by intraperitoneal injections of Fowl's 

 egg-albumin into a Guinea-pig. 



Percentage 

 of positive 

 Material tested *? x + + reactions 



8 Birds' egg-albumius 3 (37/) 3 (37%) 2 (25%) 62 



This was a weak serum, and only a few birds' egg-albumins were 

 tested with it. A few quantitative tests were also made. 



