Fifth Annual Report. 39 
VII.—FIELD OBSERVATIONS. 
Taken by Mr. W. W. Brown in Coffey county during June, 1895. 
The field which I observed was one belonging to Mr. Throck- 
morton, living about two miles north of Burlington. Mr. 
Throckmorton got the infection from me, and infected the field 
himself. The work of infection was commenced early in May. 
In about two weeks the bugs began dying. On the 3d of June 
I visited the field and found many old bugs dead. I went to 
different parts of the field and found bugs dead everywhere, 
but more numerous in the low places of the field. The field is 
rather low ground. Dry weather had been prevalent, but on 
the 30th of May there had been arain. I found many young 
red bugs on the ground and a little way up the stalks of the 
wheat. I found some young bugs dead, but very few. 
June 4. I again visited the field for the purpose of picking 
up fungus-covered bugs. I picked up 150 boxes for distribu- 
tion among the farmers. I found the bugs as they were yester- 
day except that they were moving over the ground more. I 
thought there were more young bugs dead, but perhaps in pick- 
ing I could observe more closely and thus could see the smaller 
fungus more readily. 
June 8. I went with Marshall Barber to the field. The 
weather was dryer than when I was there on the 4th, no rain 
having fallen since the 3d. We visited many parts of the field 
and found dead bugs, both old and young, in every part. Mr. 
Throckmorton was still spreading the infection, picking it up 
in one part and putting it where the bugs were advancing into 
an adjoining oat-field. There were no changes observable in the 
condition of the bugs except they had grown blacker, and there 
were more young bugs dead. We made a careful estimate of 
the proportion of young and old bugs dead, and we found it to 
be about seven young bugs to one old. We also found the in- 
fection in a field a half mile distant in which it had not been 
put this year, but was put in 1894. 
June 13. I went to the field and picked up 100 boxes of 
bugs—fungus covered. A heavy rain had fallen on the 11th, 
and I could not find many fungus-covered old bugs, but there 
were very many young bugs covered with fungus, too small to 
pick up for the boxes. We found the bugs gathering and be- 
