Implications of Continental Drift to the Earth Sciences, in 2 volumes, complete

Pp. xvi, 1-622; xiv, 623-1184; numerous maps, diagrams, geologic charts and photographs. Publisher’s original brown cloth, lettered in gilt on the spine, and stamped in blind on front cover, sm 4to. There are 87 chapters in this massive treatise divided into 11 parts - Paleomagnetic Review, Sea-floor Spreading Review, Paleontological Implications, Paleoclimate Implications, Economic Significance, Rift Margins and Continental Edge Structures, Rifts and Oceans, Paleogeographic Implications, Ancient Oceans, Continental Evolution, and Epilogue. No ownership marks and no signs of use.