v. 1. Magnetic ions in insulators, their interactions, resonances, and optical properties. --v. 2A. Statistical models, magnetic symmetry, hyperfine interactions, and metals. --v. 2B. Interactions and metals. --v. 3. Spin arrangements and crystal structure, domains, and micromagnetics. --v. 4. Exchange interactions among itinerant electrons, by C. Herring. --v. 5. Magnetic properties of magnetic alloys edited by H. Suhl.