170 INDEX 



gray ground 36 



gray prairie 36 



northern gray 22 



red 25 



southern flying 17 



southern red 25 



western fox 19 



Steamboat Rock, flying squirrel at 18 



Stephens, T. C 124 



Stoner, Dayton 156 



Striped chipmunk 26 



gopher 29 



ground squirrel 29 



spermophile 29 



control measures of 31 



economic importance of 31 



food habits of 31 



habits of 30 



Strychnia sulphate as poison 65, 73, 86, 138 



Surber, T. . . . 108 



Swainson's hawk, enemy of rodents 33, 137 



Sylvilagus 152, 153 



floridanus mearnsi 134, 153 



Synaptomys '. 146, 150 



cooperi gossii 106, 107, 150 



T 



Tama, prairie harvest mouse at 78 



Tama county, beaver in 52 



Tamias 142, 144 



striatus griseus 27, 144 



striatus striatus 26, 144 



Terriers, as enemies of rodents 60 



Thayer, flying squirrel at 18 



gray chipmunk at 29 



meadow mouse from 81 



northern white-footed mouse from 71 



prairie white-footed mouse from 76 



woodland vole from 95 



Thirteen-lined ground squirrel 29 



spermophile 29, 144 



Thomas, A. O 15, 111 



Tiberghien, Shelt 102 



Traer, chipmunk at 27 



Trapping pocket gophers 121 



Traps, types of 62 



Trees, girdling of 86 



protection of 140 



