688 INDEX. 



Page. 



Winship, George Parker 41 



Winslow, C.-E. A. (factory sanitation and efficiency) 611 



Wireless telegraphy 117, 129, 131, 133 



Wood, R. W. (recent experiments with invisible light) 155 



Wratten and Wainwright, photographs made by 158 



Writing, the study of 493 



Y. 



Yaeger, William L 94 



Yerkes Observatory 264 



Z. 



Zeleny, Dr. Ch 10 



Zimmermann, Maurice 80 



Zoological Congresses, International 16 



Zoological Nomenclature, Commission on 12, 82 



Zoological Park, National xii, 1, 4, 14, 21, 53, 59, 95 



o 



