MARYLAND GEOLOGICAL SURVEY 259

JOHNSON, W. K. A Report to the Navy Department of the United
States on American Coals applicable to steam navigation and to other
purposes.

Exec. Doc. House, 28th Cong., 1st Sess., vol. vi, 1844. No. 276, pp. 1-607.

Sen. Doc. No. 386, 28th Cong., 1st Sess., vol. vi, June 6, 1844, 607 pp.

A classic paper, including a study of a few Maryland coals, showing their great
evaporating power.

ROGERS, H. D. Address delivered at the Meeting of the Associa-
tion of American Geologists and Naturalists.

Amer. Jour. Sci., vol. xlvii, 1844, pp. 137-160, 247-278.

General historical review and geological outline of the areas studied up to that time.

————, WM. B. [Tertiary Infusorial formation of Maryland.]
Amer. Jour. Sci., 2nd ser., xlvi, 1844, pp. 141-142.
Extract from letter to editor.

SHEPARD, CHAS. UPHAM. A Treatise on Mineralogy. 2nd Edit.
12mo. Boston, 1844.

Mentions many Maryland minerals and mineral localities. (1st edit., 1832.)

1845.

ALGER, FRANCIS. Beaumonite and Lincolnite identical with Heu-
landite.

Jour. Boston Soc. Nat. Hist., vol. iv, 1843-4, p. 422. Boston, 1845.

BAILEY, J. W. Notice of some New Localities of Infusoria, Fossil
and Recent.

Amer. Jour. Sci., vol. xlviii, 1845, pp. 321-343, plate iv.

In Part III of this paper Salley describes " Fossil Infusoria of Virginia and Mary-
laud." The account includes a table showing the species of Infusoria, etc., found fossil
at " Bermuda " and at various localities in the Tertiary of Virginia and Maryland.

———— [Summary and Review of Ehrenberg's Observations on the
Fossil Infusoria of Virginia and Maryland, and a comparison of the
same with those found in the Chalk Formations of Europe and Africa.]

Amer. Jour. Sci., vol. xlviii, 1845, pp. 201-204.

This is probably a review of "Ueber zwel neue Lager von Gebirgsmassen aus In-
fusorien," although the titles are different.

CONRAD, T. A. Fossils of the (Medial Tertiary or) Miocene For-
mation of the United States. No. 3. 1845. pp. 57-80. Plates
xxx-xlv.

(Repub.) by W. H. Dall, Washington, 1893.

Original description of several Calvert Cliffs and St. Mary's fossils. See Conrad,
1838, 1S40.