38 
Concerning the control of this insect on corn, Mr. Glover states: 
The method to extirpate these insects would be to devise some method of destroy- 
ing the first brood of the perfect moths before the eggs are deposited, either by 
means of hghts or the vinegar and molasses on plates, as suggested by Colonel 
Sorsby. 
In the Patent Office Report for 1855 Mr. Glover gives further 
observations on the bollworm and again refers to the remedial meas- 
ures previoush^ mentioned. The possibilit}^ of poisoning the vinegar 
and molasses solution to kill the moths is suggested. Mention is made 
of the dissection of a single bollworm moth b}" Dr. John Gamble, of 
Tallahassee, Fla., which contained at least 500 eggs. 
In the Monthly Report of the Department of Agriculture for 1866, 
page 282, Mr. Glover, under the title ''Insects Injurious to the Cotton 
Plant," again presents previously determined facts concerning the 
bollworm without adding sluj points of importance. Three genera- 
tions at least are said to occur annually in Georgia. Nothing is added 
to the remedial measures previously indicated. 
Aside from frequent notice of injury from the bollworm in various 
parts of the cotton belt in the Monthh^ Reports from 1867 to 1876, Mr. 
Glover's work on this species seems to have closed in 1865. Mention 
should, however, be made of his "Manuscript Notes from my Journal, 
Cotton and the Principal Insects, etc.. Frequenting or Injuring the 
Plant in the United States," a collection of illustrations of this class 
of insects bearing date of 1878 and issued for private distribution. 
Although Mr. Glover determined man}^ valuable points concerning 
the life and habits of the bollworm, but little progress was made in 
the wav of determining effective means of control. His recommenda- 
tions for the use of sweets and fires to attract moths to their destruc- 
tion have subsequenth" been shown to be of no practical value. 
The next important work of the Department pertaining to the boll- 
worm was begun July 1, 1878, in connection with an investigation of 
the insects injurious to the cotton plant, ordered by Congress. This 
work was in charge of Prof. C. V. Riley until the date of his resigna- 
tion as Entomologist of the Department of Agriculture, May 1, 1879, 
when the continuance of the investigation fell to Prof. J. H. Comstock, 
appointed to the vacancy. A special report was ordered by Congress 
from the Department of Agriculture on insects affecting the cotton 
plant, and this was submitted by Professor Comstock November 11, 
1879, entitled "Report on Cotton Insects," a work of 511 pages, deal- 
ing with the cotton-leaf worm (AJahama argiUacea Hbn.) and the cot- 
ton bollworm, 28 pages being devoted to a consideration of the latter 
insect. 
At this time, also, an investigation of the bollworm was in progress 
in connection with a stud}^ of cotton insects by the United States Ento- 
mological Commission, working independent!}^ of the Department of 
