MARYLAND GEOLOGICAL SURVEY 375

TYSON, P. T. Preliminary geological map of Maryland.
First report of Philip T. Tyson, State Agri. Chemist [etc.]. Annapolis,
1860 (see 1859).

U. S. COAST AND GEODETIC SURVEY. Patuxent River—Pt. Judith
to Nottingham. No. 387. First edition (last edition, 1881).

19x22 (class F). Scale 1/30000, or 2.11 inches to a mile.

1861.

ANON. Map showing the war operations in Virginia and Mary-
land. J. H. Bufford, Boston, (1861).

25x36, colored. (Phillips.)

ANON. Eastern Virginia and part of Maryland. New York.
Schonberg & Co.

20x25, colored. (Phillips.)

ANON. A New County Map of Pennsylvania and adjoining states
showing the route of the railroads [etc]. Barnes. Phila. 1861.

37x26, roughly hachured. Scale 10 miles to an inch. Maryland as far south as
Washington and Annapolis. (Amer. Geog. Soc.)

BASCHKE, A. Topographical Map of the District of Columbia Sur-
veyed in the years 1856, 57, 58 & 59. D. McClelland, Blanchard &
Mohun. Washington, 1861.

41x41, symbols, contour (10 ft.). Scale 4 miles to an inch. Steel or copper plate.
(Amer. Geog. Soc.)

BLUNT, E. & G. W. Corrected map of Washington and the seat
of War on the Potomac.

19 1/4x13 1/2, colored, roughly drawn. Scale about 3 1/2 miles to an inch. (Amer. Geog.
Soc.)

HEYNE, CHAS. Map of Part of Virginia, Maryland and Delaware,
from the best Authorities compiled by Chas. Heyne, New York. E.
& G. W. Blunt.

26 1/4x37 3/4, outline. (Amer. Geog. Soc.)

LLOYD, J. T. Official Map of the State of Virginia From Actual
Surveys by order of the Executive. 1828 & 1859. Corrected and
revised by J. T. Lloyd to 1861. New York, J. T. Lloyd. Published
in 4 forms.

2 sheets, total 30x46, counties colored, hachured. Scale 10 miles to an inch.
Eastern Shore shows all of Maryland. (Amer. Geog. Soc.)

SCHEDLER, J. The Seat of War (or) Birds Eye View of Virginia,
Maryland, Delaware & District of Columbia. Published by W.
Schaus, New York 1861 (?).

30x22 3/4, hachured, colored. Scale 13 miles to an inch. (Peabody—Patent.)