McClung, Clarence Ervin, professor of zoölogy in the University of Kansas, was born at Clayton, Cal., April 5, 1870. He was educated at the University of Kansas and Cambridge, England, receiving the degree of Ph. G. in 1892, A. B., 1896, A. M., 1898, and Ph. D., 1903—also A. B. at Cambridge, 1903. He was assistant professor of zoölogy from 1897 to 1900; associate professor, 1900 to 1906; head of the department and curator of vertebrate paleontological collections, 1902, and acting dean of the medical school from 1902 to 1906. Prof. McClung has carried on a number of important investigations that have drawn the attention of scientists in Europe and America. Among these are sex determination from the study of germ cells of insects; osteology of upper cretaceous fish of Kansas, spermatagenesis of insects, etc. He is fellow of the American Association for the Advancement of Science, and of the Society of Vertebrate Paleontology. He has been recently appointed superintendent of the state biological survey. In 1899 he was married to Miss Anna A. Drake, of Lawrence, Kan.