

■ 



534 



INDEX TO VOLUME LXIII 



[JUNE 1917 



V 



Vallisneria spiralis, pollination of 135 

 Vegetational map of United States 332 

 Vesicarpa 325 



w 



Walters, E. H., work of 528 

 Watson, W., work of 525 

 Wells, B. W., work of 158 

 Welsford, E. J., work of 168; 240 

 Weniger, Wanda 266 

 Wernham, H. F., work of 422, 528 

 West, G. S., work of 167 

 West, W., work of 526 

 Wieland, G. R., work of 161, 247 

 Willis, J. C, work of 420 

 Wise, L. R., work of 528 



Wood structure, variations in 526 

 Wright, C. H., work of 422 

 Wuist, Elizabeth D., work of 88 

 Wylie, R. B., 135 



X 



Xanthium pennsylvanicum, membrane 





of 476 



Y 



Young, Esther, work of 424 

 Yuncker, T. G., work of 329 



z 



Zamia 421 



Ziegenbein, E., work of 524 









