246 BIBLIOGRAPHY AND CARTOGRAPHY

HAYDEN, H. H. Description of the Bare Hills near Baltimore.

Amer. Jour. Sci., vol. xxiv, 1833, pp. 349-360, map.

The position of various localities for minerals occurring here Is carefully described
and indicated on the accompanying map.

JENKINS, L. W., Chairman. Report of the Select Committee rela-
tive to the Expediency of procuring a Map of the State.

Md. House of Delegates, Dec. Sess., 1832, Annapolis, 1833, 8vo, 10 pp.
Contains a few remarks on the mineralogical features of the State by Ducatel.

LEA, ISAAC. Contributions to Geology. 237 pp. 6 plates.
Phila. 1833.

(Rev.) Amer. Jour. Sci., vol. xxv, 1834, pp. 413-423.

General discussion of the Tertiary of Alabama. New Tertiary fossil shells from
Maryland and New Jersey, and description of new forms from New Jersey and of the
Turfaceous Lacustrine formation of Syracuse, N. Y. The descriptions and figures include
the new forms Balanus finchii, Mactra clathrodon, Rotells nana, Fusus pumilus,
Millola marylandica from St. Mary's; Fort Washington deposits are correlated with
those of Claiborne, Ala.

MORTON, SAMUEL G. Supplement to the " Synopsis of the Organic
Remains of the Ferruginous Sand Formation of the United States,"
contained in vols. xvii and xviii of this Journal.

Amer. Jour. Sci., vol. xxiii, 1833, pp. 288-294; vol. xxiv, pp. 123-132, plate ix.

Traces the southern extension of the greensand districts of New. Jersey, Delaware
and Maryland.

Discusses the general stratigraphic position and accepts the term Cretaceous for the
group.

1834.

ANON. Eighth Annual Report of the President and Directors to
the Stockholders of the Baltimore and Ohio Rail Road Company.
8vo. 57 pp. 1834.

Contains Fifth Annual Report, Chief Engineer.

Map and Profile of the Sixth Division, extending from Point of Rocks to Harper's
Ferry Bridge.

AIKIN, WILLIAM E. A. Some notices of the Geology of the Coun-
try between Baltimore and the Ohio River, with a section illustrating
the superposition of the rocks.

Amer. Jour. Sci., vol. xxvi, 1834, pp. 219-232, plate.

The most complete description of the geology of Central and Western Maryland
published up to the time of its appearance.

BLAKISTON, WM. I. Report of the Joint Committee on the
Boundary Lines between Virginia and Maryland. Annapolis, 1834.
8vo. 11 pp.

Md. Pub. Doc., Dec. Sess., 1833.
Includes a report by Thos. Cresap.