John Gribbin London: Macmillan 1976 pp viii + 79 price £5.95 (cased), £2.95 (paperback)
The aim of Galaxy Formation is to present the main models proposed for the formation of galaxies at a level suitable for second-year university physics students. The author discusses Jeans' gravitational instability, gravitational clustering, the Ambartsumian fragmentation hypothesis, and the retarded-core hypothesis, and quite rightly attempts to place these ideas in the cosmological context by sketching briefly both steady state and hot big bang models.