PATHOGENIC PROPERTIES. 31 1 



with those made from diphtheria? Do the same with 

 different forms of sore-throat. Do the peculiarities of 

 any of the organisms suggest those of the bacillus of 

 diphtheria ? Wherein is the difference ? 



In cultures and cover slips made from both diphtheria 

 and from innocent sore-throats are there any organisms 

 which are almost constantly present ? Which are they, 

 and what are their characteristics ? 



Which are the predominating organisms in the an- 

 ginas of scarlet fever ? 



Do these organisms simulate, in their cultural and 

 morphological peculiarities, any of the different species 

 with which you have been working? 



