i 
Fifth Annual Report. OT 
June 28. Box 1 had a new growth of Empusa; dead bugs 
thick on the ground in places, and sticking to the sides of 
flower-pots. . The Sporotrichum had not perceptibly increased. 
The old growth of Empusa had largely disappeared, having 
dried up. Box 2. Slight increase of Empusa and Sporo- 
trichum. Not over a dozen dead bugs in each section. Em- 
pusa was found for the first time in the closed infection boxes. 
One box had an abundant growth. The box was not unusu- 
ally damp, and no reason for the appearance of Empusa there 
rather than elsewhere could be given. Open box No. 1 was 
rather dry when Empusa first appeared, but it was thoroughly 
dampened the same day and the growth of the fungus was not 
at all retarded. 
June 29. Box 1. No very noticeable change in amount of 
either fungus. Box 2. Slight increase of Sporotrichum. Per- 
haps a little more in B than elsewhere. This section was 
largely shaded by a division wall between the windows. 
June 50. Slight increase in both boxes. 
July 1. Same as yesterday. 
July 2. No change except that Empusa does not seem to in- 
crease in box 1. 
July 5. Bugs almost all dead in box 1. 
In box 2. There seems to be no difference in the different 
divisions: Empusa and Sporotrichum are the same in both. 
V.—FIELD EXPERIMENTS. 
Our observations and experiments in the field were not at 
variance with those in the laboratory. Whenever conditions 
were favorable we found Sporotrichum and often Empusa. 
The infection seemed to be generally distributed and only 
awaited favorable meteorological conditions for its manifesta- 
tion. 
All fields did not give the same results because of different 
soils, drainage, etc. But the results were alike in that we were 
unable to get satisfactory evidence that the artificial distribu- 
tion of the infection was of much assistance. We conclude from 
this that Sporotrichum survived in Kansas through the winter 
of 1894—’95, and was present over large areas in sufficient quan- 
