8vo, XX, 573pp. Hardcover with no d/w in excellent condition with red cloth boards with a gilt title on a gilt-lined black box on the spine and a blind-stamped title and lining on the front board with minor shelf wear and bumped corners only, text in excellent condition with light age-tanning and a neat prior owner’s name inside the front board. This is a further successor to and development of Pirsson and Schuchert’s “A Textbook of Geology – Part II – Historical Geology” first published in 1915 and then in further forms in 1924 to 1941. It is a lovely copy written by the Professor of Paleontology and Stratigraphy at Yale University and is the definitive work on the world’s geological history detailed with b/w photos, plates and tables. It’s partner ” A Textbook of Geology Part I ” was then published as “Physical Geology” by Longwell, Knopf and Flint.