CATALOG 1952-1953


 BLY. 428.-Limnology. 3 hours, and 3 hours laboratory. 4 credits. Of-
fered 1. Graduate major credit.
 A consideration of ecological, physical, and chemical patterns in inland waters
with a study of classic and important literature.
 BLY. 430 (formerly BLY. 411).-Individual Problems in Animal Biology.
3 credits. For undergraduates only. This course may not be offered as part
of the minimum 24 hours required for the major. Prerequisites: At least
fourteen hours in approved major courses in biology, and consent of in-
structor. This course may be repeated for full credit. Offered 1, 2, 3.
 Qualified students and the instructor concerned may choose a particular topic or
problem for study.
 BLY. 431.-Cytology. 2 hours, and 6 hours laboratory. 4 credits. Pre-
requisite: BLY. 208. Offered 1. Graduate major credit.
 Lectures and laboratory on the general morphology of the cell, with particular
reference to animal cells, and including the use of various laboratory methods and
techniques for studying cells.
 BLY. 432.-Advanced Invertebrate Zoology. 2 hours, and 6 hours lab-
oratory or field work. 4 credits. Prerequisite: BLY. 208. Offered 2. Graduate
major credit.
 An advanced survey of the morphology, developmental stages and classification of
the invertebrate phyla.
 BLY. 451.-Animal Histology. 2 hours, and 6 hours laboratory. 4 credits.
Prerequisite: BLY. 210. Offered 2. Graduate major credit.
 The structure and origin of vertebrate tissues and the methods by which they are
prepared for study.
 BLY. 481.-Animal Sociology. I. Cooperative Aspects of Group Biology.
3 hours. 3 credits. Offered 1. Prerequisite: Consent of instructor. Graduate
major credit.
 A seminar dealing with available evidence concerning non-conscious beginnings of
cooperation among animals. This course is designed for advanced undergraduates with
excellent records and graduate students in biological sciences, sociology, psychology, or
closely related fields.
 BLY. 482.-Animal Sociology. II. Organization and Leadership. 3 hours.
3 credits. Offered 2. Prerequisite: Consent of instructor. Graduate major
credit.
 A seminar concerning present knowledge about territory, social hierarchies based
on dominance and subordinance, and leadership in groups of animals. For student
eligibility see BLY. 481.
 GRADUATE COURSES
 The fields of graduate work offered in Biology are determined by the interests of
the staff and facilities available. This includes such subjects as ecology, limnology,
marine biology, zoogeography, game management, comparative anatomy, embryology,
cytology and histology. Groups in which the staff is specially interested are: flatworms,
spiders, insects, fishes, amphibians, reptiles, birds, and mammals. Departmental study
collections are maintained of all classes of vertebrates and some groups of invertebrates.
Those of the southeastern states and of the Caribbean region are of special interest.
Reference collections for food-habit studies are also maintained. At the University of
The statement "Offered 1" means offered first semester; 2, second semester; 3, summer session.