85 
wet sand, the top of the cylinder being covered with cheese cloth 
August 10, only three bugs found with external fungous growth. 
Transferred to No. 2. 
No. 5. July 28. Chinch-bugs dusted with spores of cultivated 
Sporotrichum and placed with green corn in a glass cylinder on 
wet sand, the top of the cylinder being covered with cheese cloth. 
August 9, two bugs dead with fungus found behind the leaf sheath. 
August 10, transferred to No. 2. 
No. 6. July 28. Chinch-bugs dusted with spores of cultivated 
Sporotrichum and placed with green corn in a glass cylinder on 
wet sand, the top of the cylinder being covered with cheese cloth. 
August 4, no sign of disease. August 9, two bugs dead with 
Sporotrichum behind leaf sheath of corn. August 10, transferred 
to No. 2. . 
No. 7. July 28. Chinch-bugs dusted with spores of cultivated 
Sporotrichum and placed with green corn in a glass cylinder on 
wet sand, the top of the cylinder being covered with cheese cloth. 
August 4, no disease. August 9, one bug dead with Sporo¬ 
trichum behind leaf sheath of corn. August 10, transferred to 
No. 2. „ 
No. 8. July 31. Chinch-bugs infected with spores of culti¬ 
vated Sporotrichum globuliferum aud placed in a small wooden 
box with corn stalks for food. August 2, one bug dead with ex¬ 
ternal growth of mycelium. August 4, a few more showing 
Sporotrichum. August 9, in about the same condition as No. 10. 
August 10, no apparent increase in number of dead bugs. Con¬ 
tents of box transferred to No. 2. 
No. 9. July 31. Chinch-bugs infected with spores of cultivated 
Sporotrichum globuliferum and placed in small wooden box with 
corn stalks for food. August 2, a few bugs dead with external 
growth of white mycelium. August 4, no apparent change. Au¬ 
gust 9, little, if any, increase in number of dead bugs Contents 
of box transferred to No. 2. 
No. 10. August 2. Contagion experiment with chinch bugs con¬ 
fined with Kansas specimens. Bugs from Thomson, Illinois, placed 
in small wooden box with greea corn for food, and about two 
dozen bugs dead with Sporotrichum globuliferum from Dr. Snow, 
of Kansas, also placed in the box. August 4, no visible fungous 
growth. August 9, three bugs dead, with white mycelium on them. 
August 12, a few more dead, with external fungous growth. August 
16, about half the bugs in this box are dead, but less than a 
fourth of these exhibit any external fungous growth; on some, how r - 
ever, the growth is very luxuriant. August 18, no more bugs 
dead. 
No. 11. August 2. Contagion experiment on plant-lice confined 
with chinch-bugs dead with white muscardine (Sporotrichum). Small 
pieces of corn stalk bearing corn leaf lice ( Aphis maidis) and an 
undetermined small white species were pnt into a wooden box, 
and kept on the damp sand floor of the insectary with chinch-bugs 
dead and covered with fruiting growth of Sporotrichum globulif¬ 
erum. August 8, plant-lice multiplying in the box. August 12, 
