47' 



PAGE 



Standard of Sound, A Possible, Charles T. Knipp 243 



A Sectional Study of the Kidney of the Five-spined Stickleback, 



Walter N. Hess 295 



Sheak, W. Henry, Disposition and Intelligence of the Chimpanzee. . 301 



T. 



Theibert, Roscoe, The Absorption of Iron by Platinum Ci-ucible in 



Clay Fusions 189 



Travelbee, H. C, The Erdmann New Culture Medium for Protozoa 297 

 The Trees of White County, Indiana, Louis F. Heimlich 387 



U. 



The Ustilaginales of Indiana, H. S. Jackson 119 



The Uredinales of Indiana, II, H. S. Jackson 133 



Utilization of Indiana Kaolin, William N. Logan 227 



The Unionidae of Lake Maxinkuckee, Barton Warren Evermann and 



Howard Walton Clark 251 



The Uredinales of Delaware, H. S. Jackson 311 



V. 



Variation and Varieties of Zea Mays, Paul Weatherwax 99 



W. 



Weatherwax, Paul — 



Variation and Varieties of Zea Mays 99 



Improved Technique for Corn Pollination 105 



Weeter, H. M., A Study of the Action of Bacteria on Milk Proteins 91 



Z. 



Zeleny, Charles, Germinal Changes in the Bar-eyed Race of Droso- 



phila 73 



