i9o8] HASSELBRING— ASSIMILATION OF PENICILLIUM 193 



The sixjres which arc able to germinate then have the whole of the 

 nutrient solution at their disposal and make more vigorous growth. 



thanks 



Barnes, under whom this work was carried on; and to Professor 

 J. U. Nep of the Department of Chemistry for many helpful suggestions 

 relating to the chemical aspects of the work. 



The University of Chicago 



