BY HENUY TIIYON. 
57 
as regards warmth and moisture for a lengthened period, and 
from the foregoing observation relating to the hjiitoniopthoia of 
the fly— it has been suggested that the intervention of quite 
another substance — serving as host — is needed for continuous 
development, and that many of these insect parasites have phases 
of existence, one as saprophytes and the other as insect-haunting 
plants ; or, in other words, that their parasitism is merely 
facultative. 
The communicability of a fungus disease, due to the 
presence of an Entomopthora in its conidia-bearing condition, 
from insect to insect, has been mentioned, and it remains to 
state that, in the light of recorded observation, the same is 
possible in tflie case of those dependent on the presence of 
other entomogenous fungi, especially such as belong to the 
group IsariiC, which, as has been remarked, represents 
the coiiidial condition of the ascigerous Cordyceps or ior- 
rubima— illustrated by the vegetable caterpillars on exhi i- 
tion. And it is interesting to recall the fact that the expieinnen s 
which demonstrated this communicability were undertaken with 
a view to the discovery whether or not these fungus eiiennes o 
insects might he used as remedial agents in content ing wi i 
some of tlie more intractable pests with which the agmculturis 
has to contend ; savants reflecting that, whereas such fungi weie 
certainly inimical to the growth or even continued existence of 
certain Indn.stries, and especially to that of silk on tnre and so 
should be held in check ; there were, on the other hand, a i . 
of insects which, by their depredations, largely militated agam 
the success of other enterprises, especially the ones 
agriculture, and that it would be largely to ^ 
con<.rned with such ^r^its ii th^^tu^i m^d 
made available in figlitmg them. 
.cienfel, MeKoI.nikoff, 
ta.,,. a..t..ctor »1»" ‘Bo “,'*“0 8‘ * 
beelk. Anisophi. u ‘l o ™ h ol 
transferred from gi’ub to giub, co ^ and so 
this fungus apart irom its contending with 
arming himself with a poweiM ^ where the Isaria 
this destructive beetle in the man} o 
