254 BIBLIOGRAPHY AND CARTOGRAPHY

1839.

ANON. Report of the Treasurer of the Western Shore to the House
of Delegates of Maryland. In obedience to their order of the 28th
ultimo stating the Expenses incurred in making the Geographical and
Geological Surveys of the State, n. d. 8vo, 2 pp. [Annapolis,
1839.]

Md. Pub. Doc., Dec. Sess., 1S38.

BOOTH, JAS. C. First and Second Report of the Geological Survey
of Delaware. 25 pp. Dover, 1839.

CONRAD, T. A. Notes on American Geology. Observations on
characteristic Fossils, and upon a fall of Temperature in different
geological epochs.

Amer. Jour. Sci., vol. xxxv, 1839, pp. 237-251.

Reference to the Eocene deposits at Upper Marlborough and Piscataway, Md., as
Illustrations of deposition by gentle currents.

See also Conrad, 1838, and Dall, 1893.

DUCATEL, J. T. Annual Report of the Geologist of Maryland,
1838. 8vo, map and illustrations. 33 pp. [Annapolis, 1839.]

Md. Pub. Doc., Dec. Sess., 1838.

Considers the geology and mineral resources of Harford and Baltimore counties;
also contains a treatise on Lime (map of Cecil County).

ERICKSON, CAPTAIN. Report of Captain Erickson, Civil Engineer,
London, showing the cost of the coal of the Maryland Mining Com-
pany per ton, delivered at the several cities of Washington, Baltimore,
Philadelphia and New York. 1839.

SHEPPARD, F. Report to the Potomac and Allegany Coal and Iron
Manufacturing Company. 1839.

SILLIMAN, B. Extract from a report made to the Maryland and
New York Coal and Iron Company. 1839.

WELD, HENRY THOMAS. A Report made by Henry Thomas Weld,
Esq., of the Maryland and New York Iron and Coal Company's Land,

&c.

WHARTON. Report of the Select Committee appointed by the
House of Delegates to Report a Bill to abolish the Office of State
Geologist, n. d. 8vo. 3 pp. (1839).

Md. Pub. Doc., Dec. Sess., 1838 [L].