INDEX. 191 



Page 



Sneezeweed 175 



Soapwort 79 



Sorrel, field 03 



Sow-thistle 145 



Spanish needles , 161 



Spearmint 123 



Speedwell 133 



Spraying for weeds 24 



Spurge Family, weeds of 91 



Squirrel-tail grass 57 



Steel-weed 177 



Stickseed, Virginia 113 



Stinking-grass 55 



St. John's-wort Family, weeds of 98 



Sumac Family, weeds of 94 



Sunflower, common 173 



wild 172 



Sweet clover 90 



Sweet potato, wild 108 



Tansy .- .,..'. 162 



Tear-thumb, arrow-leaved 69 



Teasel 139 



Thistle, Canada 166 



common 164 



Thistle Family, weeds of 153 



Thorn apple 128 



Thoroughwort 157 



Tick-trefoil, hoary 90 



Toad-flax 131 



Tongue-grass 82 



Trumpet creeper 134 



Tumble-weed 53, 74 



Velvet leaf 97 



Venus' looking glass 140 



Vervain Family, weeds of 115 



Water hemlock . . . ." 103 



Water-pepper 66 



Weed, definitions of 6 



Weed extermination, rules for 20 



seeds, distribution of 7 



Weeds, losses caused by 13 



of cities and towns 16 



used in medicine 29 



Wheat thief 114 



White-top 177 



Wire-grass 59 



Wood sage 118 



Wormseed 70 



Wormwood 103 



Yarrow 178 



