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69. Fresh food added. July 16, thirty-six fungus-covered bugs 
picked from surface of dirt, and afterwards returned. Molds not 
so bad as formerly. Fresh food and more bugs from reception 
box added. July 17, no fungus of any consequence present. 
Spoiled food removed. July 18, very little Sporotrichum seen, 
but more abundaiit than in other boxes (68, 69, and 71). Food 
changed and amount of water used in the box increased. July 19, 
fungus more abundant than in 68 and 69. Box in good condi¬ 
tion. July 20, very few fungus-covered bugs seen. Removed 
enough live bugs for three hundred pill boxes, with cultivated 
fungus (from No. 2), for shipment. A little mold present on 
earth. Old food removed. July 21, fungus about as abundant as 
yesterday. Box in good condition. Fresh food introduced. July 
23, few bugs with fungus seen. One hundred and forty-four pill 
boxes filled with live insects and cultivated fungus from same 
source as above, and prepared for shipment. Large number of 
live bugs from reception box introduced. July 24, fungus-covered 
bugs more abundant, but not numerous. Anguillulids present on 
dead chinch-bugs. July 25, overhauled and food renewed. July 
26, Sporotrichum very scant; the living bugs from experiment 71 
transferred to this box. Anguillulids found in earth and on corn 
leaves in small numbers. July 28, but few bugs with Sporotri¬ 
chum seen. Fresh food introduced. July 30, number of bugs 
with fungus not great. Aspergillus on the increase. Mites abun¬ 
dant on earth. Anguillulids present bn dead pupse and adults. 
The worms were present on a dead pupa which contained an 
apparent mycelial growth of the white fungus. Two adults, dead 
and badly decomposed, contained them in considerable numbers. 
July 31, about fifty insects dead with the white fungus seen, but 
growth very poor, in most cases being quite inconspicuous. Mites 
very abundant on the corn, especially where the sap was exuding. 
A few were seen on dead chinch-bugs behind corn leaves. An¬ 
guillulids were also seen on dead bugs in similar situations. Old 
food removed, and about half the quantity of fresh food usually 
introduced added. 
August 2, two hundred and eighty-one fungus-covered insects 
removed; among them a pair copulating, the female being dead, 
with a short mycelial growth about the thoracic region, while the 
male was still alive, quite active, and showed no signs of distress 
or irritation. Chinch-bug eggs and young were abundant. Ten 
blow-fly larvse were seen. Mites very abundant, sometimes accu¬ 
mulating in great numbers on the leaves. Box finally overhauled; 
everything removed and transferred to No. 68. 
No. 71. June 26, the fourth large box was supplied with earth, 
and stocked with live chinch-bugs and fresh food, but no infection. 
June 27, fresh food introduced. June 28, food renewed and a lot 
of live bugs added. Infected with cultivated spores on corn meal 
and beef broth (from No. 2). June 29, fresh food introduced. 
July 1, in fair condition. Cleaned up. Fresh food and more live 
insects added. July 2, very little Sporotrichum seen. A little 
mold on the earth. Fresh food introduced. July 3, enough 
