INDEX. 143 



Page 



Wild indifro 5- 



Wild lupine 52 



Wild mint <il 



Wild rice :<•! 



Wild rye -i** 



Wild spikenard 41 



Wild teasel «4 



Wild yam 42 



Willow 43 



Willow family 4.'$ 



Willow-herl) 5(; 



Wind-flower 4T 



Wiiit cr cress 4!> 



Wintergreen family 58 



Witch hazel '<<) 



Wood betony '53 



Wood nettle 44 



Wood sage CO 



Wood-sorrel 53 



Wood sorrel family 53 



Wormssed 45 



Wormwood 67 



Xanthi\im 60 



Xylococcus betula 82 



Y. 



Yam family . . .' 42 



Yarrow 67 



Yellow avens 51 



Yellow daisy 66 



Yellow dock 45 



Yellow melilot 52 



Yellow pond lily 47 



Yellow poplar 48 



Z. 



Zanthoxylum 53 



Zizania 30 



Zizia 58 



Zoological research, present directions of 28 



Zoology, experimental 27 



Zoology, morphological versus systematic ' 29 



