CONTENTS 



Introduction 13 



Part I. Description of Iowa Rodents with Discussions of 



Habits, Distribution, Economic Importance, Methods 



of Control, etc 16 



Gnawing Mammals, Order Rodentia 16 



Squirrels 4 , Woodchucks, Spermophiles, etc 17 



Southern Plying Squirrel 17 



Western Pox Squirrel 19 



Northern Gray Squirrel 22 



Southern Red Squirrel 25 



Chipmunk 26 



Gray Chipmunk 27 



Thirteen-lined Spermophile 29 



Franklin's Spermophile 36 



Black-tailed Prairie-dog 40 



Southern Woodchuck 46 



Beavers 50 



Beaver 50 



Rats and Mice 52 



House Mouse 52 



House Rat 54 



Black Rat 68 



Northern White-footed Mouse 69 



Prairie White-footed Mouse 73 



Prairie Harvest Mouse 76 



Meadow Mouse . . . . 78 



Prairie Meadow Mouse 87 



Woodland Vole 91 



Common Muskrat 9*6 



Great Plains Muskrat 105 



Goss' Lemming Mouse 106 



Pocket Gophers 108 



Pocket Gopher 108 



Jumping Mice 122 



Hudson Bay Jumping Mouse 122 



Prairie Jumping Mouse 124 



American Porcupines 125 



Canada Porcupine 126 



Hares and Rabbits 120 



Minnesota Varying Hare 130 



White-tailed Jack Rabbit 131 



$. Great Plains Jack Rabbit 133 



Mearns^ Cottontail Rabbit . . 134 



