516 



Index 



Water loss, control of, 93. 



Water requirements, 116. 



Waugh, F. A., 346. 



Webber, H. J., 396. 



Weeds, destruction by poisons, 454. 



Wellington, R., 279. 



Wheats, hard, 9. 



Wheeler, H. J., 168. 



Whipple, O. B., 407. 



Whitney, M., 168, 435. 



Whitson, A. R., 248. 



Wickson, E. J., 135, 155. 



Widtsoe, J. A., 135. 



Wiegand, K. M., 414. 



.Wiesner, J., 279. 



Wilcox, L. M., 135. 



Wilfarth, 168, 248. 



Wilson, E. B., 34, 493 ; W. E., 224 



Wilting, 37, 69, 80. 



Wimmer, 168. 



Winton, 137. 



Wollny, W., 135. 



Woods, A. F., 183. 



Woronin, M., 249. 



X 



Xenia, 365, 379 ; false, 368. 

 Xerophytes, 129. 



* 



Z 



Zimmermann, A., 279. 



Printed in the United States of America. 



