40 Contagious Diseases of the Chinch-bug. 
ginning to moult, and some were already moulted. Many had 
gone to an adjoining corn-field and had killed some of the stalks. 
They had been yery numerous in the wheat, but had not yet 
proceeded far into the corn. They were not working so fast in 
this field as in an adjoining field not infected. 
June 17. Bugs nearly all gone from wheat-field. Visited 
corn-field, and found afew dead bugs atthe hills. Bugs piling up, 
and a good many winged bugs to befound. The bugs were going 
from the corn to an oat-field on the east. They were all, or 
nearly all, black, and were well grown and winged. Bugs on 
east side of oats came out of a wheat-field, and along this side 
infection had been placed. The dead bugs here covered the 
ground, numbering about 30 to the square inch. One thing 
was noticeable: the bugs were mostly red, indicafing, we 
thought, that they were still coming from the wheat-field as 
they hatched. There seemed to be three kinds of fungi—the 
sporo, another of a watery color, and another of a silken or 
webby appearance. The oat-field was beside a corn-field, and 
the bugs came from the wheat-field into the oats and corn 
alike. In the corn they were dying very slowly, only a few at 
each hill; but in the oats, 10 feet distant, they were as above 
described. Infection had been placed in corn and oats alike. 
June 20. Visited the oat-field and picked up 134 boxes for 
distribution. The dead bugs were about twice as numerous as 
they were three days ago. The living had decreased to about 
one-tenth of what they were. I cannot say what became of 
them. Probably, being older and stronger, more of them than 
of the young bugs had burrowed into the ground when dying. 
They had moved a little farther into the oats, but not sufficient, 
I think, to account for the great decrease. The bugs that were 
there were not eating, but slowly crawling over the ground or 
piling up to moult. Young bugs were still coming from the 
wheat-field. The bugs had not gone over 20 yards into the 
oats, and had hurt the oats only about eight feet. They were 
not dying, or at least very slowly, in the corn, only a few being 
dead at each hill. The ground was dryer than on the 17th. 
The weather up to this time had been good growing weather, 
but at no time during the entire spring could it be considered. 
wet. JI have come to the conclusion that the infection will 
work readily in the ordinary season in oats and wheat, due to 
