Jan. 22,1917 
Temperature Relations of Apple-Rot Fungi 
157 
plotting of the curves for figures 14 to 23 and also for figure 25 the growth 
during the 24 hours at laboratory temperature was always deducted 
from the-final growth, a thing which could not be done in the case of the 
Fig. 18.—Graph showing the growth of 
Glomerella cingulata on corn-meal agar in 
petri dishes. 
Fig. 19.—Graph showing the growth of 
Neofabraea malicorticis on corn-meal agar 
in petri dishes. 
apple experiments, as the effects of the fungi were not evident at the end 
of one day. 
It was thought that, since the agar probably remained practically 
uniform at the different temperatures and the apples were evidently 
Fig. 20.— Graph showing the growth of 
Penicillium expansum on corn-meal agar 
in petri dishes. 
Fig. 21.—Graph showing the growth of 
Sclerotinia cinerea on corn-meal agar in 
petri dishes. 
ripened and weakened by the higher ones, the optimum for some of the 
fungi might be lower on the former than on the latter and that there 
might be more sudden drops above the optimum with the former. A 
comparative study of the results, however, does not indicate this. 
