195 



The following table gives a brief summary of ten cases with the 

 results of the agglutination tests : 



Agglutination tests with serum of recovered cases, May 17, 1908. 



A= Strain from Loeffler. 



B= Strain from market virus. 



C= Strain from stool 1 (fatal case). 



D= Strain from stool 2 (case 1 of table). 



—= No test made. 



0= Negative. 



±= Slight. 



ControIs= Serum of Ave normal persons tested as above; gave in no case agglutination higher than 1 :20. 



