504 



THE JOHN CRERAR LIBRARY 



X rays, 164, 371. 



Yale University. Peabody Museum of 

 Natural History. Laboratory of 

 Invertebrate Paleontology, 253, 264. 



Yale University. Sheffield Scientific 

 School, 440. 



Yale University. Sheffield Scientific 

 School. Laboratory of Physio- 



logical Chemistry, 442, 453. 



Yeaman, C. H., 164. 



Year-book for colorists and dyers, 355. 



Year-book of the scientific and learned 

 societies of Great Britain and Ire- 

 land, 49. 



Yeasts, 242-244. 



Young, C. A., 151. 



Zeitschrift fiir Krystallographie und 



Mineralogie, 182. 

 Zeitschrift fiir Mathematik und Physik, 



136, 148, 158, 290. 

 Zeitschrift fiir Pflanzenkrankheiten, 450. 

 Zeitschrift fiir physikalische Chemie, 



173- 



Zeitschrift fiir physiologische Chemie, 

 179, 180, 253, 259. 



Zeitschrift fiir Psychologic tind Physio- 

 logic der Sinnesorgane, 62. 



Zeitschrift fiir wissenschaftliche Mikro- 

 skopie, 224. 



Zeitschrift fiir wissenschaftliche Zoologie, 

 247. 



Zeman, J., 289, 421. 



