REPORT OF THE SOCIETY 



57 



nfection. Culture 23 which has an average weight of .01 agrees with the 

 second group but has different infection capacities as shown by Tables II and 

 IV. Culture 16 and 25 are outstanding in the very small amount of growth and 

 agree with IV on this media as they did on potato dextrose agar. 



Taking these results it is possible to divide the cultures into the following 

 three groups: — 



I. 2, 4. 5, 26, 31; 1. 30, 32 and possiblv 23. 

 II. 6, 25, 29 and 33. 

 III. 16 and 35. 



Table IV shows the weights obtained in a test with four cultures on four 



carbon sources. A fifth source of carbon was used but only gave a trace of 



growth. Four of the most interesting of the cultures were selected for this test 



which, however, was only allowed to run four weeks on account of the time avai- 



'able. 



TABLE VI 



Selected cultures growth on Czapeck's solution modified in carbon source. 



* Growth so slight that both were put together to get the weight. 



Cellulose acetate was also tested but the growtli was so slight that it could 

 not be weighed. 



Again the most striking fact is the very low weights of mycelium obtained 

 from cultures 16 and 35, on all the carbon sources. Cultures 2 and 23 give 

 appreciable differences in average weight on maltose and asparagin. 



