49° 



INDEX 



430; flying, 422-423; fur-bearing, 

 455-457; game, 451-45,3 ; geographical 

 distribution of, 416; gnawing, 430-434, 

 45S-459; habitats of, 308, 416; hair 

 of, 400; hibernation of, 413; hoofed, 

 435-441 ; insectivorous, 421 ; internal 

 organs of, 402 ; locomotion of, 402 ; 

 migration of, 414, 415; nervous sys- 

 tem of, 407 ; orders of, 419-449 ; 

 pouched, 42O-421; predaceous, 453- 

 455; protection of, 399; reproduction 

 of, 410 ; respiration in, 406 ; sense 

 organs of, 408; skeleton of, 410, 411; 

 teeth of, 404; toothless, 434-435; 

 tracks of, 410, 413. 



man, classification of, 105. 



mandible, 13. 



mantle, 147, 149. 



mantle cavity, 148. 



marten, 425, 455. 



martin, house for, 396. 



massasauga, 328. 



Masligameba, 225, 226. 



Mastigophora, 233. 



mating, of birds, 354. 



maxillae, of crayfish, 134 ; of grasshopper, 

 13- 



maxillipedes, 134. 



mayfly, 25. 



medulla oblongata, 258, 259 (see nervous 

 system) . 



medusa, 207. 



Mendel, 475, 476. 



mesoderm, of frog, 265, 266. 



mesoglea, 203, 207. 



metabolism, 241. 



metagenesis, 207. 



metamere, 174. 



metamorphosis, direct, 19; indirect, 20; 

 of insect, 19-2o; of mussel, 152. 



Melazoa, 202, 239. 



mice, 388, 458, 459. 



micronucleus, 219. 



migration, of birds, 350-354; of caribou, 

 415 ; of fish, 276 ; of mammals, 414-416. 



milkweed butterfly, 31. 



millipede, 128. 



milt, 276, 295. 



mimicry, 30. 



mink, 427, 454, 455. 



miricidium, 187. 



mite, 119, 121; chicken, 124; face, 126 ; 



follicle, 126; gill, 127; harvest, 125, 

 126; itch, 125,126; scab, 124, 125. 



mitosis, 263, 2D4. 



moa, 361, 362. 



moccasin, water, 329, 330. 



mockingbird, 380. 



molar teeth, 405. 



mole, 421. 



mole-cricket, 24, 25. 



Mollusca, 7, 157, 15S ; classification of, 

 167; relations to man, 166. 



molting, of birds, 347 ; of grasshopper, 18. 



mongoose, 459. 



monkeys, 444, 445, 446. 



Monocystis, 226, 227. 



moose, 437. 



morphology, 16. 



mosquito, S6-97 ; control of, 90-96; 

 eggs of, 87, 90; enemies of, 90; and 

 intestinal worms, rS 1 ; larva of, 87, 

 90; malarial, 87-93, 227 ; mouth parts 

 of, 26 ; pupa of, 88, 90 ; yellow fever, 

 93-y6. 



moth, anatomy of, 26 ; clothes, 60 ; cod- 

 ling, 42; fish, 57, 58; gypsy* 44-46; 

 leopard, 45, 46 ; silkworm, 62 ; tus- 

 sock, 43, 44. 



mother-of-pearl, 148. 



mouth, of Euglena, 224 ; of frog, 246 ; 

 of Hydra, 199 ; of lamprey eel, 268, 

 269; of mussel, 147, 150; of Para- 

 mecium, 21S, 219; of Plan-aria, 1S3. 



mouth parts, of grasshopper, 13 ; of 

 house fly, 76; of insects, 25-26; of 

 mosquito, 26; of moth, 26. 



movements, of frog, 245. 



mucus, of snail, 158. 



mud puppy, 299, 300. 



mule, 451. 



Muller, 474. 



muscle, 247, 256. 



muscular system, 238, 256, 257. 



museums, 479. 



muskallunge, 286. 



muskrat, 456. 



mussel, 140, 145-153; anatomy of, 147, 

 149; circulation in, 151; classification 

 of, 157; digestion in, 150; habitat of, 

 145; reproduction of, 151; respiration 

 in, 140; sense organs of, 150; shell 

 of, H6-148. 



Myriapoda, 107, 128-129, 



