294 UNIVERSITY OF FLORIDA BCY. 401.-Advanced Bacteriological Technique. 2 hours, and 4 hours laboratory. 4 credits. Offered 2. The history of the development and uses of various bacteriological and serological techniques used in diagnosis, examination of various products of food, water, milk, but not covered in other formal course offerings. BCY. 402.-Dairy Bacteriology. 2 hours, and 4 hours laboratory. 4 credits. Offered 2. Bacteria and related microorganisms encountered in milk and dairy products; milk spoilage, milk fermentation; bacteriology of butter, ice cream, cheese; standard methods of milk analysis and dairy inspection. Hammer, Dairy Bacteriology. BCY. 403.-Epidemiology. 2 hours, and 3 hours reading and problem work. 3 credits. Offered 3. History, spread and means of control of communicable diseases. BCY. 404.-Filterable Viruses and Associated Organisms. 1 hour, and 4 hours laboratory. 3 credits. Offered 1. The nature and study of the activity of viruses, bacteriophage and rickettsial para- sites of man, lower animals and plants. BCY. 405.-Veterinary Bacteriology and Immunology. 2 hours, and 4 hours laboratory. 4 credits. Offered 2. Cause, means of spread and control of the diseases of farm and related wild ani- mals. Gives techniques for isolation and identification of causal agents of disease, methods of immunization and diagnostic tests. Special consideration given to diseases peculiar to the Southeastern U. S. BCY. 411.-Principles and Practices of Immunology. 2 hours, and 4 hours laboratory. 4 credits. Offered 1. Preparation and therapeutic uses of biologicals from a bacteriological standpoint; diagnostic tests. Sherwood, Immunity, 3rd Ed. BCY. 412.-Industrial Bacteriology. 2 hours, and 4 hours laboratory. 4 credits. Offered 2. Principles and problems in industrial bacteriology; isolation, cultivation and classi- fications of organisms concerned. Prescott & Dunn, Industrial Microbiology, 2nd Ed. BCY. 413.-Physiology of Bacteria. 2 hours, and 4 hours laboratory. 4 credits. Offered 1. Chemistry and physiology of bacteria and related microorganisms; the influence of environment on bacterial metabolism, growth and reproduction. BCY. 440.-Special Bacteriology and Sanitation. 2 hours, and 4 hours laboratory. 4 credits. Offered 1. Algae and related organisms (Limnology), protozoan disease agents, virus disease agents and bacteriological pollution. Emphasis is placed on means of spread and pre- vention of each disease-mosquito, fly, flea, louse and tick abatement. BCY. 441.-Taxonomic Bacteriology. 6 hours laboratory. 3 credits. Pre- requisites: 16 hours of bacteriology, 8 hours of chemistry. Offered 2. Techniques used to determine the morphological, physiological, cultural and im- munological characteristics necessary for the identification of bacteria, yeasts, molds and actinomycetes. Bergey, Manual of Determinative Bacteriology, 6th Ed. The statement "Offered 1" means offered first semester; 2, second semester; 3, summer session.