130 
fungus-covered bugs removed to make up forty-nine boxes for cor¬ 
respondents. Little mold on earth. More live bugs added. July 
4, fungus quite abundant, the whitened bodies of the insects being 
most abundant just beneath the surface of the earth. Material for 
thirty-eight packages removed. Earth in box stirred up to destroy 
molds. Fair condition. Food changed. July 5, condition about 
as yesterday, except that a few anguillulids were seen in earth. 
July 6, a few fungus-covered bugs present. Molds still develop¬ 
ing on earth. Fresh food and live insects added. July 8, very 
little Sporotrichum seen. Box in very bad condition. Aspergillus 
quite abundant on dead bug3, and molds common on the earth. 
Blow fly larvae very numerous. Food changed and live bugs intro¬ 
duced. July 10, only slight traces of muscardine. Aspergillus 
seems less abundant. Molds still present. Fresh food added and 
more chinch-bugs from reception box introduced. July 11, few 
bugs dead with Sporotrichum. Box in fair condition. Fresh food 
and more live insects added. July 12, in fair condition. Anguil¬ 
lulids present on earth. Many bugs dying without developing any 
sort of fungous growth Fresh food introduced. July 13, condition 
about the same as yesterday. Anguillulids present in small 
numbers. July 14, Sporotrichum very scant. Food changed. 
July 16, only two insects dead with muscardine seen. Molds on 
earth not so bad as formerly. Fresh food and an additional lot of 
bugs from reception box introduced. July 17, no Sporotrichum of 
any consequence seen. Fresh food added. July 18, white fungus 
very scant. Fresh food added. Amount of water used in moisten¬ 
ing box increased. July 19, a greater number of insects dead 
with muscardine than were seen in experiments 68 and 69 on this 
date, the number d^ad, however, being about equal to those in No. 
70. Box in good condition. July 20, very few fungus-covered 
bugs seen. Bad food removed. Slight traces of mold on earth. 
July 21, amount of fungus about as yesterday. One hundred and 
thirty-two pill boxes filled with live bugs and cultivated material 
(from No. 2), and prepared for shipment. Box thoroughly over¬ 
hauled and fresh food introduced. July 23, more bugs from recep¬ 
tion box introduced. July 24, bugs with Sporotrichum few in 
number. Anguillulids quite plentiful on dead insects. July 25, 
box overhauled and food renewed. July 26, white fungus very 
scant. A quantity of living bugs transferred from this box to No. 
70. Anguillulids found quite abundant on the earth. July 30, 
final overhauling. No Sporotrichum found. Many dead insects 
covered with Aspergillus. Mites very abundant on earth, and their 
eggs found on a dead chinch-bug enveloped in a growth of Asper¬ 
gillus. Box discontinued. 
No. 72. An experiment begun June 1 to test the direct effect 
of moisture upon chinch-bugs in confinement. A number of speci¬ 
mens from Tonti, in Southern Illinois, which had not been exposed 
to fungous infection, were placed in a Riley breeding-cage, the top 
of which was afterwards covered with glass to prevent evaporation 
This cage sat in a metal pau, the bottom of the cage being filled 
