UNIVERSITY OF FLORIDA CY. 110.-Elements of Chemistry. 2 hours, and 2 hours lecture-demon- stration. 3 credits. Offered 2. The second half of the course CY. 109-110. CY. 121 (formerly CY. 101).-General Chemistry. 3 hours, and 3 hours laboratory. 4 credits. Offered 1, 2, 3. Fundamental laws and theories of chemistry. Non-metallic elements and their com- pounds; metals and their compounds and some of their uses. CY. 122 (formerly CY. 102).-General Chemistry. 3 hours, and 3 hours laboratory. 4 credits. The second half of the course CY. 121-122. Offered 1, 2, 3. CY. 123 (formerly CY. 203).-Qualitative Analysis. 2 hours, and 3 hours laboratory. 3 credits. Prerequisite: CY. 122. Offered 1, 2, 3. Theoretical principles and laboratory techniques involved in the qualitative de- tection of the common metals and acid radicals. CY. 217 (formerly CY. 105).-General Chemistry and Qualitative Analy- sis. 3 hours, and 3 hours laboratory. 4 credits. Prerequisites: Upper per- centile rating in placement tests in physical sciences and mathematics or satisfactory completion of C-2. In general, freshmen should present evidence that they have had high school chemistry. Prerequisite or corequisite: Basic Mathematics. Offered 1, 2, 3. A course in general chemistry including the fundamentals of qualitative analysis. CY. 218 (formerly CY. 106).-General Chemistry and Qualitative Analy- sis. 3 hours, and 3 hours laboratory. 4 credits. The second half of the course CY. 217-218. Offered 1, 2, 3. CY. 301.-Organic Chemistry. 3 hours, and 3 hours laboratory. 4 credits. Prerequisite: CY. 331. Offered 1, 3. Preparation and properties of the various aliphatic and aromatic compounds. CY. 302.-Organic Chemistry. 3 hours, and 3 hours laboratory. 4 credits. The second half of the course CY. 301-302. Offered 1, 2. CY. 315.-The Chemistry of Water Treatment. 2 hours, and 3 hours lab- oratory. 3 credits. Prerequisite: CY. 122 or CY. 218. Offered 1. A theoretical and practical study of the examination and treatment of water. CY. 317.-Physical Chemistry. 3 hours, and 3 hours laboratory. 4 credits. Prerequisites: CY. 331, MS. 105-106. Corequisite: Organic Chemistry. Of- fered 1. Properties of solutions, chemical equilibrium, pH, the colloidal state; particular emphasis on biochemical applications. Designed primarily for students of medicine, pharmacy, biology, and related fields. CY. 331 (formerly CY. 205).-Introductory Quantitative Analysis. 2 hours, and 6 hours laboratory. 4 credits. Prerequisite: CY. 123 or CY. 218. Offered 1, 2, 3. Theoretical principles and laboratory technique involved in quantitative determina- tions. Determinations include gravimetry, acidimetry and alkalimetry, oxidimetry and iodimetry. The statement "Offered 1" means offered first semester; 2, second semester; 3, summer session.