Index. 



181 



Viola septemloba 87, 



sororia 



striata 



tenella 



tricolor var. arvensis 



triloba 



villosa 88, 89, 



villosa var. cordifolia 



Violets, Purple stemless 



Viverra mephitica 



Vulpes pennsylvanicus 98 



w 



Waite, M. B. : I^ife history of pear-blight 

 microbe vii 



Walcott, Charles D. : Preliminary notes on 

 Middle Cambrian medusae ix 



Washington, Fourth list of additions to 

 flora of. 29-43 



Page 



91,92 

 ,.. 92 

 .. 32 

 33 

 33 

 .. 92 

 91, 92 

 ... 92 

 85-92 

 ... 140 



Page 



Weasels of eastern North America 1-24 



White, David : New forms of Palaeozoic 

 Algae from Central Appalachian Re 

 gion viii 



Structure and relations of Butho- 



graptus, Plumulina, and Ptilophyton 

 from the North American Palaeozoic viii 



Woods, Albert F. : Action of overdose of 

 hydrocyanic acid gas on tomato plants., x 



Spotting of maple leaves xi 



Woodwardia angustifolia 43 



Xyris flexuosa. 



Z 



Zapus hudsonius 97 



insignis 50 



