188 



So it was proved : 



1. Amygdalin is assimilated by Fusariwn whilst young mycelium 

 is formed at the expense of the assimilated amygdalin. (Table I). 



2. Compared with glucose amygdalin is not an inferior nutriment 

 at least with regard to the dry weight of mould obtained. (Table I). 



3. Benzaldehyde and to a small degree HCN hinder the develop- 

 ment of Fusarium in liquids containing glucose (Table II«), whilst 

 the addition of emulsin to liquids containing amygdalin prevents 

 growth entirely. The same emulsin has practically no retarding 

 influence on the development of Fusarium in glucose containing 

 solutions (Table 11^). 



Therefore it is impossible that when amygdalin as only source of 

 carbon is assimilated by Fusarium this glucoside is dissociated to an 

 important degree into glucose, benzaldehyde and HCN out of the cell. 



Dordrecht, May 1917. 



