PLATE FAtiE 



Spraying for destruction of Wild 



Mustard 23 



Spurge, Sun ii 



Spurrey 17 4U 



Corn 40 



Squirrel-tail Grass b8 



St. James's-wort 57 



Stachys palustris 74 



Staggerwort 57 



Stellaria graminea 37 



media 15 37 



Stickseed 70 



Stinking Willie 57 



Stinkweed 9 28 



Stipa spartea 86 



Stitchwort, Grass-leaved 37 



Lesser 37 



Succory, Wild 61 



Summer fallowing 11 



Sunflower, Black-headed 48 



Many-flowered Prairie 48 



Sunflowers, Wild 48 



Sunflower Family 47 



Sweet Grass 49 92 



Tanacetum vulgare 58 



Tansy, Common 58 



Taraxacvm erythrospermum P2 



officinale 62 



Tare, Wild 41 



Thcrmnpsis 41 



Thistle. Bull PO 



Canada 29 .59 



Creeping 59 



Field 59 



Prairie *iO 



Soft Field 59 



Sne^r 59 



Thistle, Western Bull PO 



'Thistle, Russian" 77 



PLATE FA6R 



Thhispi arvense 9 28 



Bursa-pastoris 27 



Tickle Grass 88 



Toad Flax 73 



Trijolium, arvense 42 



Triticum repens 87 



Tumble Weed 80 



Twitch 87 



UMBELLIFER.E 45 



Vaccaria Vaccaria 11 33 



vulgaris 33 



Vanilla Grass 92 



Verbena Family 73 



Verbenace.!: 73 



Veronica 73 



Vervain, Blue 73 



Vetch, Purple Tuft«d 42 



Vicia angustifolia 41 



Cracca 42 



Weed, what is a 6 



Weeds, losses due to 6 



names of 5, 7 



how they spread 8 



classification of 8 



extermination of 9 



not natural to soil 13 



Weeders and harrows 12 



Wheat-thief 68 



White Bottle 39 



White Weed 55 



Willow herbs 43 



Wormwood. Roman .52 



Wormwoods 48 



Yarrow 51 



Yellow-weed . (Narrow - leaved 

 Yellow - we"d (Narrow - leaved 



Goldenrod) 49 



103 



