LIST OF ILLUSTRATIONS 



PAGE 



Monarch Butterfly. From Nature Biograpkits xi 



Cover Design for Booklet. From a Japanese Stencil .... 2 



Dandelion Seedheads 5 



Burdock . 7 



Broad-leaved Dock 8 



Evening Primrose .10 



Toadflax or Butter-and-Eggs II 



Milkvfeed Pods 13 



Sprig of Johnson Grass. Sedrawn from Gates and Spillman . . 14 



Squirrel-tail Grass . 15 



Cone-flower 16 



Canada Thistle 18 



Milkweed Seeds 21 



Sheep Sorrel 22 



Hardback 24 



Poison Hemlock .... .26 



Poison Ivy. From Drawing by A. I. Randall ..... 27 



Quack Grass . . . •. 3' 



Pigeon Grass 32 



Shepherd's Purse 33 



White Pigweed 35 



Ragweed ; • • ■ 37 



Qotbur 38 



Ground Cherry or Physalis 4° 



Jimson Weed 4* 



Gill-over-the-Ground 44 



Mixture of Weed Seeds. From U. S. Department of Agriculture . 46 



Meadowsweet SS 



Spud 56 



Broad-leaved Dock. Redrawn from Henkel S9 



Goldenrod Seedheads 61 



Cover Design for Booklet on Insects 64 



Mouth Parts of Grasshopper 66 



vii 



