Elements of tape recorder circuits: by Herman Burstein and Henry C. Pollak. 223 pages, diagrams, 512 × 812 in. New York, Gernsback Library, Inc., 1957. Proce: $5.00 (hard cover); $2.90 (paper)

Understanding hi-fi circuits: by Norman

Understanding hi-fi circuits: by Norman H. Crowhurst. 224 pages, diagrams, 512 × 812 in. New York, Gernsback Library, Inc., 1957. Price: $2.90 (paper); $5.00 (cloth)

📂 Article 📅 1957 🏛 Elsevier Science 🌐 English ⚖ 80 KB

The author discusses the chemistry of plants in such a way as to interest research workers in medicine, agriculture, food processing and the manufacturing of chemicals for fungicides, insecticides and phytocides. Twelve chapters cover, for example, carbohydrates (in which gums amd mucilages are trea