INDEX. 



Ixxv 



PAGE 



Fertility of scattered eggs, 291 



Fertilization, time required, 343 



Fertilized females, assembling by, 363 



Field force discharged, 63, 84 



organization of, .......... 50 



reductions of, . . .60, 64, 79 



operations criticised by Professor Riley, 56 



pupation of the gypsy moth in the, 335 



work begun, 47 



work, discontinuance of, 68, 78, 84 



Fifield, Mrs. George, on migration of caterpillars, .... 13 



Fifleld, W. W., statement of, 21, 44 



Fingerling, Prof. Max on egg killing, 118 



Fire, aid furnished by, 7, 166 



caterpillars destroyed by, 58, 59, 87, 126 



eggs destroyed by, 57,118,119 



numbers of moths destroyed by, 92 



Fires, rules concerning (Appendix B). 



First destructive appearance of the gypsy moth, .... 7 



Fish-oil soap, use of, 163 



Fitchburg Railroad, inspection of, Ill 



Flicker attacking the gypsy moth, 221, 227 



Flight habits of gypsy moth, 97, 112, 342, 344 



Flinn, Mrs. J. W., statement of, 8, 22, 25, 27 



Flood, M. J., observations on blue-jay, 214 



Fly-catchers attacking the gypsy moth, . . 7, 207, 219, 226, 227, 236 



Foliage, area of, o.n trees, 494 



destruction of, by caterpillars, . . . 8-28, 59, 85, 96, 273-284 



effect of insecticides on, 159, 489, 494 



FoUansbee, Mrs. S. J., statement of, 17, 27 



Food, amount consumed by caterpillars, 315 



amount necessary for birds, 204 



distribution of the gypsy moth from lack of, . . . . 95 



existence of caterpillars without, 325 



plants of the canker worm, 97 



plants of the gypsy moth, 58, 246, 316 



plants of the gypsy moth, cotton as, 324 



plants of the gypsy moth in Europe, 325 



plants of the tent caterpillar, 97 



selection by gypsy moth caterpillars, 485 



Forbush, E. H., director, lectures on g3Tsy moth by, . . . 200 



on colors of animals of British Columbia, 271 



on feeding habits of crows, 394 



report on birds v. gypsy moth, 203-243 



suggestions concerning caterpillar traps by, .... 311 

 Force, field. See Field force. 



Forests attacked by gypsy moth, 97, 274 



possible danger to, from gypsy moth, 70, 87 



Formica suhsericea, 381 



Foster, F. E., statement of, 18, 29 



Fowls affected by arsenic, 162 



