36 BIBLIOGRAPHY OF ECONOMIC ENTOMOLOGY. 
277. Comstock, J. H.—Continued. 
ground beetles, 174; soldier beetles, 175; lady bugs, 176; the 
boll-worm, 179; tlio grass-worm, 179; wasps, 180; ants, 181; 
general testimony, 184; Dr. McCook’s report, 182. 
Parasitic : Former notices of parasites, 190; Dr. Gorham’s account, 
190; Mr. Affleck’s account, 191; Mr. Glover’s account, 191; Dr. 
Pbares’s mention, 192; Mr. Jones’s account, 192; the cotton- 
worm egg parasite, 193; general remarks on Chalcididae, 193; 
the ovate chalcis, 194; Cirrospilus esurus, 195; unnamed chalcid 
parasite, 196; Didictyum zigzag, 197; general remarks on Ichneu- 
monuke, 198; the yellow-banded Ichneumon, 198; the red-legged 
Pimpla, 200; Cryptus nuncius, 201; the Tachina flies, 202; the 
flesh flies, 204; Phora aletice, 208; summary, 211. 
Chapter VII: 
Remedies. 215 
Report of experiments by Mr. Trelease, 215; preventive measures, 
230; protection of insectivorous birds, 230; encouragement of 
the insect enemies of the cotton-worm, 230; thorough cultiva¬ 
tion, 231; destruction of eggs, 231; collecting larvm by hand, 
231; destruction of larvae by poisons, 232; Paris green, 232; 
Texas cotton-worm destroyer, 233; London purple, 234; John¬ 
son’s dead shot, 234; objections to the use of arsenic and its 
compounds, 234; carbolic acid, 235; kerosene, 235; pyrethrum, 
236; modes of applying poisons, 236; wet poisons, 238; Whit¬ 
man’s fountain pump, 239; Doughtry’s machine, 243; Willis's 
machine, 243; Johnson’s machine, 244; dry poisons, 245; Young’s 
dusting apparatus, 246; Allen’s machine, 247; Wilts’s machine 
for dry poisons, 248; Davis’s machine, 249; Levy’s machine, 250; 
Eldridge’s machine, 251; Robinson’s machine, 252; destruction 
of larvae by machinery; Helm’s machine, 253; Ewing’s machine, 
255; destruction of pupae, 256. 
Destruction of moths : General testimony, 256; poisoned sweets, 
257; testimony, 258; observations of Professor Smith, 259; 
observations of Professors Willet and Comstock, 260; fruit 
recommended, 261; best poison, 261; advisability of use of 
poisoned sweets, 262; Heaixl’s moth trap, 262; fires, 262; trap 
lanterns, 263; Colonel Lewis’s lantern, 263; Mr. Trelease’s evi¬ 
dence, 264; conclusions in regard to the use of lanterns, 264; 
B. F. McQueen’s lantern, 265; I. G. G. Garrett’s lantern, 266; 
J. R. Duke’s lantern, 267; J. R. Stephen’s invention, 267; 
Richard Pitman’s moth trap, 268; C. R. Dudley’s moth trap, 
269; G. C. Cranston’s lantern, 270; E. D. Pugh’s lantern, 271; 
Thomas Byrne’s lantern, 272; Mark Rigel’s invention, 273; J. 
Stith’s lantern, 274. 
Chapter VIII: 
Bibliography. 276 
Part II.— The Boll-Worm. 
Chapter I: 
Importance of the subject... 287 
Comparison of the destruction caused by the cotton-worm and the 
boll-worm, 287; testimony of correspondents, 288; injury to 
corn, 289; estimates of damage by boll-worm exaggerated, 289; 
insects causing falling of bolls and buds, the work of which is 
laid to the boll-worm, 290. 
