UNIVERSITY OF FLORIDA EY. 515.-Advanced Biological and Natural Control. 1 hour, and 6 hours laboratory. 3 credits. Prerequisites: EY. 408, EY. 460, EY. 462, and EY. 464. The fundamental principles of natural and biological control, including basis of control; resistant hosts; function of bacteria, fungi, viruses and protozoa; use of parasitic invertebrate animals; special emphasis upon Hexapods of value in natural and biological control; and cases where such control has been of great value in control of economic species. EY. 516.-Advanced Insect Ecology. 1 hour, and 6 hours laboratory. 3 credits. Prerequisites: EY. 408, EY. 460, and EY. 462. Offered 2. Ecological principles and their application to insect life in which the economic applications are stressed. Research problem required. EY. 517.-Principles of Insect Pathology. 2 hours and 3 hours laboratory. 3 credits. Prerequisites: EY. 408, EY. 464, BCY. 301. A study of the diseases of insects which are caused by bacteria, fungi, viruses, pro- tozoa, nematodes, and nutritional disturbances. EY. 518.-Chemistry and Toxicology of Insecticides. 1 hour and 6 hours laboratory. 3 credits. Prerequisites: CY. 121-122, EY. 405. A study of the chemistry of insecticides and their toxicity to insects. EY. 520.-Advanced Medical Entomology. 1 hour and 6 hours laboratory. 3 credits. Prerequisites: EY. 408, EY. 420, EY. 460. Offered 1. An advanced study of the insects affecting the health and comfort of man. FAMILY LIFE Registration in FAM. courses is restricted to women students. Students planning to major in this field will take FAM. 101, 102, 103, 246, and 336. Additional courses to complete major requirements may be selected with the ap- proval of the Departmental adviser. Students who offer Family Life as a component part of a group major must have the approval of the Departmental adviser for the combination of courses taken in this area. FAM. 101.-Food and Nutrition. 3 hours. 3 credits. Offered 1. The need for food, sources of food; protein, energy, vitamin, and mineral ele- ments; intermediate metabolism and signs of nutritional deficiency diseases. FAM. 102.-Physics in the Home. 2 hours and 2 hours laboratory. 3 credits. Prerequisites: C-21 and C-42. Offered 2. A study of those phases of physics which have a direct bearing on an intelligent use of the equipment of a modern home. The laboratory portion consists of a series of studies and exercises closely paralleling subject matter in the recitation. FAM. 103.-Child Care. 2 hours and 2 hours observation. 3 credits. Offered 1, 3. A study of the characteristics of the child from birth to puberty in terms of growth and personal needs. Child care practices are described and evaluated from the stand- point of the home. FAM. 201. (Identical with IR. 201).-Home Decoration I. 6 hours of conference and studio work. 3 credits. Offered 1, 3. For course description consult Interior Design section of catalog. The statement "Offered 1" means offered first semester; 2, second semester; 3, summer session.