206 



Tests with Precipitins 



Beactions 



x + + % 



389 MAMMALIA 388 1 .02 



312 AVES 



8 Ratitae 



3 Struthionidae (2 sp.) \ 



4 Kheidae (1 sp.) 4* 2 2 so- 

 1 Casuaridae 



304 Carinatae 



7 Coly mbiformes 51 1 28 



1 Procellariformes 1 . . o 



13 Ciconiiformes 10 1 1 1 .23 



30 Anseriformes 17 10(33%) 3 (10%) . 43 



42 Falconiformes 41 1 . . -2 



30 Galliformes 18 3(10,,) 9(30,,) 40 



6 Gruiformes 51 -16 



50 Charadriiformes 49 1 2 



16 Cuculifonnes 11 2 3 . .31 



21 Coraciiformes 18 3 . .14 



88Passeres 80 7(8%) 1 a' 



4 Eggs 



1 Katitae 1 . 100 



3 Carinatae 1 1 1 1 100 



46 KEPTILIA 



13 Chelonia 10J .21 .23 



3 Crocodilia 1 1 1 



30 Sauria 29 1 . -3 



10 AMPHIBIA 10 .0 



23 PISCES 23 o 



5 CRUSTACEA 5 o 



* 4 Rheidae. 



t Egg-white of fowl, several specimens of which gave same result. 



J 8 of these dried on filter-paper. (See text, p. 207, top.) 



No. 815 dried on paper, sent from Central Africa. 



(2) 630 Tests with Anti-Emu's Egg- White. 



The antiserum used in the following tests was obtained by treating 

 a rabbit with the egg-white of Dromaeus novae-hollandiae Vieill., the 

 emu (No. 799), received from the Zoological Society's Gardens, London. 

 This antiserum was fairly powerful. Standardized by Dr Graham-Smith, 

 it gave a precipitum of '028 c.c. when tested after being stored 5 months 

 on ice, '1 c.c. of antiserum being added to - 5 c.c. of 1 : 21 solution of 

 emu egg-white. 



The preceding table shows that the antiserum for the egg-white 

 of the emu only produced a large reaction with the dilution of the 



