[MAP] 1839 Geological Exploration of part of Iowa, Wisconsin, and Illinois

Owen, David Dale. Report of a Geological Exploration of part of Iowa, Wisconsin, and Illinois, made under instructions from the Secretary of the Treasury of the United States, in the Autumn of the year 1839; with charts and illustrations. Washington: Ordered to be printed by the Senate of the United States, June 11, 1844, 1845. Revised Edition. [12491]

Removed, no wrapper or binding, 9 x 5 1/2 inches, 191 clean pp. With many maps and plans, see list below. Very interesting explorations and the plates are each in very good condition. The report itself is starting to separate into two sections. Good. Disbound.

28th Congress, 1st Session, Senate Doc. 407.

"This report was first dispatched to the department 2d April, 1840, and was printed (without the accompanying charts, sections, and other illustrations) 4th June, 1840. This edition, before going to press, has been revised, and some slight additional matter added, chiefly statistics collected since the survey, together with a few remarks regarding some organic remains and the relation between Eastern and Western formations; but the main body of the work and illustrations retain their original form." - Note.

In addition to the written text and text charts, this has the following folding plates:

Untitled plate showing geologic strata, 11 x 9 inches;

Geological Chart of part of Iowa, Wisconsin, and Illinois, hand-colored, 18 x 23 inches;

Geological Section from the Mouth of Rock River...&c. Hand-colored, 12 x 19.25 inches;

Chart of the Great Illinois Coal Fields, hand-colored, 9 x 5.5 inches (not folding);

Plate V. is an untitled lithograph of the exploration party at the edge of a cliff;

Plate VI. is an untitled lithograph of the same scene from behind, showing the valley;

Plate VII. is a folding lithograph of fossils;

Plate VIII. is a river scene with a towering balanced rock formation;

Plate IX is a lithograph of a mining scene with a man descending a rope and three men with picks mining the cave;

Plate X. is a small lithograph of a valley and river scene; next is a folding lithograph of fossils;

XIII & XIV are folding lithographs entitled, "Fossils of the Coralline Beds of the Upper Magnesian Cliff Limestone of Iowa and Wisconsin;

XV. is Fossils of the Lead-Bearing Beds of Iowa;

XVI. is "Fossils of the Lower Lead-Bearing Beds of the Upper Magnesian Limestone of Wisconsin";

XVII. & XVIII. are two more fossil lithographs;

XIX. has two figures, one hand-colored, of geological sections;

XX. is the same, of the Blue Mounds of the Wisconsin River at Arena;

XXI. is a b/w map, "Magnetical Chart...Mines of the United States;

Plates XXII.-XXV. are single page lithographs of Antiquities of Wisconsin, showing animal-shaped mounds.