F&SF novel-commentary, published in USA 1972, now somewhat dated but of historical interest, on eugenics, parthenogenesis, and male - female relationships. After 500 years of no males in the all-female society, DNA is taken from the sperm of a corpse, and re-vitalized. The consequent effects on the all-female society are devastating. Well-written, well-researched, an early novel-discussion in this field. First published in UK in 1958 as "World Without Men".