Statistics of library service in Illinois.

Includes directory information.

Upper Des Plaines River area assessment /

"Critical Trends Assessment Program."--Cover.

Cooperative mining series.

No. 1 (Preliminary report on organization and method of investigation) published without series title or number.

Minerals economics brief.

Title from cover.

On the physical structure of Devonshire, and on the subdivisions and geological relations of its older stratified deposits, & c /

Reprint. Originally published: London : Geological Society of London. (Geol. trans. 2nd series ; v. 5).

The geology of Pennsylvania; a government survey: with a general view of the geology of the United States, essays on coal-formation and its fossils, and a description of the coalfields of North America and Great Britain,

Vol. II, pt. I-II, paged continuously.

Memoirs of the Geological Society of Great Britain. Explanation of sheet.

Explanation for some sheets issued in combined numbers.

Annual report - Pennsylvania State Geologist.

Atlases accompany 1885; 1886, pt. 3-4.

Geological bulletin.

Mode of access: Internet.

Evaluation of a hydrograph-shifting method for estimating suspended-sediment loads in Illinois streams /

Bibliography: p. 6.

Report of the state geologist.

State geologist: 1881-98, James Hall; 1899-1904, F.J. H. Merrill.

Geological bulletin.

No. 4 issued 1951. No. 5 issued 1950.

List of publications.

Some vols. accompanied by separately paged supplements.

Waukegan area : Lake County /

"October 7, 1950."

A topographic survey of the property of Mr. Arthur Jackson. Lake Forest, Illinois.

Pencil, green, red, black ink on linen; topo. lines, elevations; buildings sketched in pencil; at lower right, "Book #19, Pages 32-45. MLJ (?)." unsigned. 93 x 95 cm. Scale: 1"=30' [from photographic copy by Lance Burgharrdt]