XI. B, 1 Ruediger: Hemolysis by Human Serum 37 



Table VI. — Hasmolysis by unhealed human serum — Continued. 



Serum No. 



Corpusclee of- 



Sheep. 



0.4 



0.2 



0.110.05 



Goat. 



0.4 



0.2 



0.1 



0.05 



Horee. 



0.4 



0.2 



0.1 



0.05 



Rabbit. 



0.4 



0.2 



0.1 



0.05 



Guinea pig. 



0.4 0.2 



0.1 0.05 



14 

 15 

 16 

 17 

 18 

 19. 

 20. 

 21. 

 22. 

 23. 

 24 

 25. 

 26. 

 27. 

 28. 

 29. 

 30. 

 31. 

 32. 

 33. 

 34. 

 35. 

 36. 

 37. 

 38. 

 39. 

 40. 

 41. 

 42. 

 43. 

 44. 

 45. 

 46. 

 47. 

 48. 

 49. 

 50. 



+ 

 + 

 + 

 + 



+ 

 + 

 + 

 + 



I 



j + 



; + 

 I + 



! + 



! + 

 + 

 + 

 + 

 + 

 + 



tr 

 



tr 

 

 tr 



+ 

 ± 



tr 

 ± 

 

 ± 

 + 

 

 i 

 tr 

 

 + 

 tr 

 tr 

 tr 

 

 

 + 

 tr 

 + 

 tr 

 ± 

 tr 

 + 

 

 ± 

 

 tr 

 

 

 tr 

 ± 



tr 



+ 





 

 

 

 



+ 



tr 

 

 

 

 tr 

 ± 





 

 

 

 

 

 

 

 

 

 

 

 tr 

 

 + 





 

 

 

 

 

 ± 

 

 

 tr 



+ = complete haemolysis; ±=:from 50 to 100 per cent haemolysis; tr=haemolysis less than 

 50 per cent; = no haemolysis. 



Table VI shows that sera 46, 47, 48, 49, and 50 have a low 

 haemolytic power for horse corpuscles. These five sera were 

 tested at one time, and this drop in the haemolytic power of 

 these sera did not escape notice. Other things having been 

 equal, the resistance of the corpuscles was at once thought of. 

 As I had never used corpuscles of this horse before, serum 48, 



