1923] 



KLOTZ — NITROGEN METABOLISM IN FUNGI 



335 



evident. With the disappearance of the dextrose in Aspergillus 

 cultures a decrease in the weight of the fungus and in [h] im- 

 mediately begins. For the other 2 fungi the maximum dry 





Fig. 1. H-ion change of media. Aspergillus niger, first series 



c 



' i J 4 J 4 » 



*JJS SJ +J & 



Fig. 2. H-ion change of media. Aspergillus niger, second (left) and third series 



