Marcou, Jules; A Geological Map of the United States, and the British Provinces of North America; with an Explanatory Text, Geological Sections, and Plates of the Fossils Which Characterize the Formations. Boston, Gould & Lincoln, 1853. Octavo text, pp. 92, 8 plates of fossils, viii of ads. The hand-colored geological map is nicely backed and framed ready for hanging. It measures 40 inches wide x 30 inches tall.

The work is complete with the text in the original brown cloth with embossed cover titles and gilt spine titles. The binding is tight and clean, the title page is lightly foxed, the text and plates are clean. The map is in a wood frame, backed and has a clear acid free acetate front. Light toning to the map and very minor wear at the original folds. The set is in very good condition and would be shipped in a mirror box to protect the framed map. Avery good set.

Jules Marcou (1824 – 1898) was an eminent Swiss-American geologist. He was born at Salins, in the département of Jura, in France. His early years were spent working with with Jules Thurmann (1804-1855) on the geology of the Jura mountains. 
In 1847 he went to North America as traveling geologist for the Jardin des Plantes, and then joined Louis Agassiz in Boston and accompanied him to the Lake Superior region to study the geology and evidence of glaciation in the region and visit the copper mines to collect mineral specimens for museums in France.
He then spent two years in studying the geology of various parts of the United States and Canada. He was particularly interested in the geology of New Jersey, Pennsylvania and Virginia. In 1853 he was the first geologist that crossed the United States, being attached to the Pacific railroad exploration of the 35th parallel, and made a section from the Mississippi river to the Pacific Ocean. In 1853 he also published a Geological Map of the United States, and the British Provinces of North America which we offer here.
In 1855 he became professor of geology and palaeontology at the polytechnic school of Zürich, but relinquished this office in 1859, and in 1861 again returned to the United States, when be assisted Louis Agassiz in founding the Museum of Comparative Zoology.