UNIVERSITY OF FLORIDA Florida Conservation Reserve on the St. Johns River near Welaka, living quarters, boat house, and a laboratory with a herbarium are available to qualified graduate stu- dents in Biology or visiting investigators. A comprehensive herbarium, under control of the Agricultural Experiment Station, is available at Gainesville. Each student is required to present, before the departmental faculty and graduate students, a discussion of his dissertation during the latter part of his candidacy for a graduate degree. Prerequisites: Approximately thirty hours of approved undergraduate courses in animal biology, including at least a one-semester course in each of the following: com- parative vertebrate morphology, embryology, invertebrate zoology, and genetics. Stu- dents not meeting the above requirements will be required to make up any deficiency early in their graduate work. It is advised that the student have completed twelve hours in one of the allied sciences, such as botany, chemistry, or geology. It is desirable that the student have completed, as an undergraduate, a year's work in botany, chemistry, geology, and physics. The department of Biology requires a reading knowledge of one foreign language for the M. S. and a reading knowledge of two foreign languages for the Ph.D. Usually German or French is recommended for the M. S. program, since both are required for the Ph.D. BLY. 502.-Statistical Methods for Biologists. 3 hours. 3 credits. Pre- requisite: 20 credits in Biology. Offered 2, 3. BLY. 505.-History of Biology. 2 hours. 2 credits. Prerequisite: An under- graduate major in Biology. Required of all graduate majors in the depart- ment. Offered 1, 3. BLY. 506.-Biological Literature and Institutions. 2 hours. 2 credits. Re- quired of all graduate majors. Offered 2. A review of the compendia, journals and bibliographic sources in the various fields of biology, and a survey of the workers, collections, and special fields or research of some of the more important laboratories and museums. Methods used in the preparation of scientific papers for publication are also included. Considerable emphasis will be placed on a study of library methods and the most advantageous use of bibliographic sources. BLY. 509.-Zoogeography. 2 hours. 2 credits. Offered 1. Zoogeographic divisions of the world and their characteristic animals; factors in- fluencing the distribution of animals; the relation of geographic races to speciation and evolution. BLY. 512 (formerly BLY. 455).-Marine Ecology. 2 hours, and 6 hours field or laboratory work. 4 credits. Prerequisites: BLY. 208 and CY. 122. Offered 2. BLY. 522.-Advanced Ornithology. 2 hours and 3 hours laboratory. 3 credits. Prerequisite: BLY. 420. Not offered 1952-53. The taxonomy, morphology, natural history, and distribution of the living families of birds; representative genera and species. The statement "Offered 1" means offered first semester; 2, second semester; 3, summer session.