Oxford Press, 1951. FIRST EDITION, 13th printing. Green pictorial boards, very good condition. Scarce original dust jacket. Illustrated endpapers (former owner inscription) & interior drawings by Katherine L. Howe. Contains a two-page chart on the History of the Earth and its Life. As well as an analysis of the tides and the global thermostat. A fascinating book. Text clean, some mild foxing. Original dust jacket in good condition, some small tears and chips along spine and edges. Author's second book, preceding her classic, 'Silent Spring' both of which are landmark books in ecological science & environmentalism. 230 pages + index.