54 



51. The Erdmann New Culture Medium for Protozoa, 20 min. . : . . 



By C. A. Beh- 



rens, Purdue University; H. C. Travelbee, Purdue University 



52. Disposition and Intelligence of the Chimpanzee 



W. Henry Sheak, Philadelphia, Pa. 



53. The Uredinales of Delaware H. S. Jackson, Purdue University 



54. The Trees of White County, Indiana 



Louis L. Heimlich, Purdue University 



