354 Antisera for Reptilia 



Marked positive results with Antisera to 



Material tested Chelonia Crocodilia Lacertilia Ophidia Ophidian egg-alb. 



Egg-Albumins 



Birds' egg-albumins 

 Eeptile 

 Amphibian , , 

 Fish 



Blood Sera 



/Chelonia 



_. .... Crocodilia 

 Eeptiha J T 



Lacertilia 



^Ophidia 

 Amphibia 

 Piscea 

 Arthropoda 



Quantitative measurements with Anti-Reptilian Sera. 



The methods used in tabulating these results are the same as those 

 made use of in recording similar observations with the antisera to egg- 

 albumins. 



(1) Tests with Anti-Tortoise Serum (T. ibera). 



Amount of 

 Material tested precipitum Percentage 



Turtle serum -0463 117 



Tortoise -0394 100 



Alligator ,, '0018 7 



Greenfinch egg-albumin -0046 12 



Silver Pheasant's ,, -0041 10 



Moorhen's -0037 9 



Hedge-Sparrow ,, -0018 5 



Frog, Amphiuma, and Dogfish sera failed to react. The few quanti- 

 tative tests made with this antiserum are in accord with the qualitative 

 tests. By the latter method Tortoise and Turtle sera gave full reactions. 

 This is the only instance in which a non-homologous serum gave a 

 higher reading than the homologous serum, and the result is probably 

 due to some error in measurement, or dilution. By the qualitative 

 test Alligator serum, Greenfinch, Silver Pheasant, and Moorhen's egg- 

 albumins gave slight reactions, and Hedge-sparrow egg a doubtful 

 reaction, 



