1334 Quantitative Precipitin Testa 



6. Quantitative Tests with Anti-Avian Sera. 



Tests with Anti-Ostrich Serum (11. in. '02). 



Antiserinn from rabbit treated with the serum of Pttriithia molybdn- 

 plianes. 



I'recipituiu 

 Blow! of Date amount Percentage 



740 Struthio molybdophanes. Ostrich 20. xii. 01 -042 100 



277 Casuarius bicurunculatus. Cassowary 14. xi. 01 -020 <>2 



342 Rhea americana. Ehea 25. xi. 01 -017 41 



511 Pelecanus onoerotalus. Pelican 18. ii. 02 -017 41 



369 Sarcorhamphus gryphus. Condor 27. xii. 01 -015 3C 



Gallus domesticus. Fowl '25. ii. 02 -007 17 



590 Anas boscas. Duck. 7. iii. 02 -007 17 



281 Nyctea scandiaca. Owl. 14. xi. 01 -007 17 



From the above it will be seen that a considerable reaction was 

 obtained with all the avian bloods tested, the percentage falling in the 

 order given. It must be noted that the blood of Rhea (842) was putrid 

 when received, and that it contained a considerable amount of deposit 

 due possibly to the chloroform, this may account for the low percentage 

 obtained in this case. Although all avian bloods react apparently to 

 anti-avian sera (see qualitative tests) it is evident that there are quanti- 

 tative differences which will require further study. 



Tests ivitii Anti-Fowl Serum (8. vi. '02). 

 Antiserum from rabbit treated with the serum of Gitllus domenticHx. 



l'ret:ipitum 

 Blood of Date amount Percentage 



Gallus domesticus -035 100 



590 Anas boscas 7. iii. 02 -012 34 (average of 2 tpsts) 



277 Casuarius 14. xi. 01 -0095 27 



Columba vi. 02 -008 23 



281 Nyctea 14. xi. 01 -0072 21 



369 Sarcorhamphus 27. xii. 01 -0(t(j~> 19 



342 Rhea 25. xi. 01 -0065 19 



511 Pelecanus 18. ii. 02 -004 11 



Note the comments in connection with the preceding tests. 



