Lecture Before Zoological Club

Dr. W. E. Castle '93 will read at a meeting of the Zoological Club this afternoon at 4.45 o'clock a paper on "The Heredity of Sex," which will deal largely with the application of Mendel's principles of heredity to the observations on mammals which he has made in the Museum of Comparative Zoology during the last two years. The meeting, in Room 1, fourth floor of the Museum of Comparative Zoology, will be open to the public.