INDEX 



309 



Quinnat or king salmon, size of, 116 

 Quiscalus, 195 



R 



Rabies, 2 



Rabbit, damage by, 254-55 



food, 254 



means of destruction, 255 



poisoning of, 257 



protection of, 255 

 of gardens from, 257 

 of trees from, 257 



rate of increase, 254 



skin, 222 



species in North America, 254 



traps, 256-57 



value as food, 255 

 Raccoon family, 212 



and field mice, 251 



skin, 213 

 Radiata, 20 

 Radiolaria, 3 

 Radiolarian ooze, 3 

 Rana catesbiana, 128 



clamata, 129, 131 



palustris, 129 



virescens, 129 

 Rangifer arcticus, 272, 273 



caribou, 272 



tarandus, 272 

 Ranidae, 127 



breeding habits, 130 



as food, 127-28 



number of species, 127 

 Rat, age at sexual maturity, 228 



albino, 230 



bait, 238-39 



and bubonic plague, 228 



campaigns, 243-44 



characteristics and distribution, 229 



cleanliness as prevention, 244 



clubs, 244 



damage by, 228 



destruction of harbors, 244 

 cooperation in, 243-44 



Rat, and disease, 228 



early threshing of grain, 244 



food of, 230 



habits, 230 



introduction into Europe and 



America, 230 

 killing in burrows, 243 



by fumes, 241-43 

 Lantz's measures for rat warfare, 



244 

 methods of protecting food from, 



234 

 and mice, 228 



as destroyers of birds, 198 



as food, 260 



key to species of, 229 

 migration, 231 

 in mills, 231 

 natural enemies, 243 

 nocturnal habits, 231 

 numbers of, 231 

 original home, 230 

 poisons, 238, 240-41 



protection of domestic animals 



from, 241 

 population, 231 

 posters, 232-33 

 prolificness, 232 

 proofing barns and buildings, 234- 



35 

 with concrete and wire netting, 



235 



corn cribs, 235-37 



by elevation, 235 



protection of natural enemies, 244 

 rat-proof garbage cans, 234 

 sewer rat, 244 

 shields, 242 



systematic destruction of, 244 

 three kinds, 228 

 traps, 238-39 



barrel, 240 



guillotine, 238-39 



snap, 238 



wire, 239 

 use of rat-proof containers, 244 



