INDEX 



371 



Hen flea, 155 



Herbicides, 71 



Herbs, 71, 73 



Heredity, laws of, 330, 334, 338 



Hermit thrush, 51 



Heroin, 343 



Heron, 39, 40 



Herring gull, 38 



Hessian fly, 21, 156 



Hickory, 59, 60, 82 



High laurel, 75 



"Hill Folk, The," 345 



Hip disease, 234 



Hog and fowl cholera, 110, 233 



Hollyhocks, 86 



Holstein, 103 



Honey locust, 82 



Honeybee, 157 ; relation of, to tree 

 fertility, 157 



Hookworm, 107, 2~53, 254, 256, 268 



Hookworm disease, 254, 268 ; pic- 

 tures of victims of, 252 



Horehound, 72 



Horn fly, 113, 157 ; life history, 121 



Horned lark, 48 



Horned toad, 325 



Horse, 165, 257, 261 ; itch mites of, 

 166 



Horse botfly, 157 



Horse-chestnut, 75 



House ant, 155 



House cricket, 154 



House fly, 20, 317; breeding places, 

 113, 114 ; fecundity, 18 ; relation of, 

 to filth, 116, 118. See also Flies 



House pets, 245 



House wren, 51 ; food of, 25 



Household insects, 154, 155 



Hydrogen, 98 



Hydrophobia, 256 



Hymenoptera, 153, 156 



Hypochlorites, 249, 251 



Hypochlorous acid, 249 



Human flea, 154 

 Human mite, 166 

 Human tapeworm, 260 

 Humming bird, 6, 46 

 Humming-bird moth, 155 



Ichneumon fly, 136 



Imported currant fly, 21 



Indian corn, 95 



Indian pipe, 188 



Indian poke, 76 



Indian-meal moth, 155 



Indigo bunting, 49 



Infantile paralysis, 20, 122, 236, 256 



Infection, 110, 122, 246 



Inflammation, 234, 236 



Inflammatory fever, 248 



Influenza, 235 



Insect-catching bottle, 131 



Insecticides, 152 



Insectivorous birds, 44 



Insects, 44, 51, 97, 176, 250, 253, 313, 

 315 ; attacking animals, 157 ; bene- 

 ficial, 157 ; cases for mounting, 11 ; 

 classification of, 150, 151, 152; 

 damage and loss from, 19, 20, 24 ; 

 fecundity of, 18 ; household, 154, 

 155 ; injurious to vegetation, 155, 

 156, 157; literature on, 149; nets 

 for catching, 11, 12 ; orders of, 153; 

 parts of, 152 ; size of, 18 ; work 

 of, 18; work of controlling, 20 



Ireland, famine in, 208 



Iris, 86 



Iron, 71, 98, 99 



Ironwood, 59 



Itch mites, 166 



Itchweed, 76 



Ivy, 75, 76 



Ivy wood, 75 



Jack pine, 59 

 Jamestown lily, 75 



