490 



mycelium, but the tigures for llie fiingus-croi» in the different tables 

 show that this cannot be so. Moreover in figure 3 a representation 



* « e la It It i>u soji tm M«r <> » a 



Tt ti ty ItO lOT 



118 IM l« 



Fig. 3. 



is given of the development of the ujyceliuni in the last-menlioned 

 experiment. There the duration of the development, given in days, 

 is measured on the axis of the abscissae, whilst the ordinates give 

 the dry-weight of the fungus-mass. In the first days a strong increase 

 of the crop is evident, which is followed by a decrease, probably 

 caused by the preponderance of the processes of dissimilation over 

 the assimilation. On working up the mycelium for the enzyme a 

 large portion of the older cultures was found to be dead, a pheno- 

 menon (piite easy to establish, because the hyphae felt soft and 

 flaccid and no longer elastic, as in the young cultures; but this 

 could only with certainty be observed, when the fungi were some 

 months old. 



It is however quite clear that no proportion exists between the 

 amount of dry matter of the fungus and the quantity of enzyme 



