Emmons, Samuel Franklin; Cross, Whitman; Eldridge, George Homans; Talmage, James E. Geology of the Denver Basin in Colorado. (With a chapter on paleontology by O. C. Marsh and F. H. Knowlton). USGS Monograph Volume XXVII, United States Geological Survey, Washington, D.C, 1896. Quarto, pp. xxi, 556, vix, 5 folded maps, sections in rear pocket, 26 plates and maps for total of 31, 102 figures.
The work is complete with all plates and maps present. In the original brown cloth with gilt spine titles, minor corner bumping. The binding is tight and clean. The text and all plates are clean and bright, an old college library stamp on the outer margin of an end sheet and text page. Over all an exceptional copy in very good condition.
The author’s of this pioneering report on the Denver Basin provide a comprehensive study of the general geology, stratigraphy and structural geology of the region. This is followed by a review of the Mesozoic, to Tertiary stratigraphy, the igneous rocks, and economic geology. O. C. Marsh describes the known vertebrate fossils with a focus on the dinosaur beds and Knowlton describes the paleobotany.