MARYLAND GEOLOGICAL SURVEY 377

———— Chesapeake Bay. Potomac River to Choptank River.
No. 134. First edition, (last edition 1896).

29x38 (class F). Scale 1/80000, or 0.79 inch to a mile.

———— Chesapeake Bay. Choptank River to Magothy River.
No. 135. First edition, (last edition 1895).

29x38 (class F). Scale 1/80000, or 0.79 inch to a mile.

———— Chesapeake Bay. Magothy River to Head of Bay. No.
136. First edition, (last edition 1877).

29x38 (class F). Scale 1/80000, or 0.79 inch to a mile.

WEYSS, JOHN E. Military Map showing the topographical features
of the country adjacent to Harper's Ferry, Va. etc. Surveyed from
August 3rd to Sept. 30th 1863 under the direction of Capt. N.
Michler, Corps of Eng. U. S. Army, by Major John E. Weyss, Prin-
cipal Assistant, Engineer Department, Army of the Potomac.

29x24 1/2, contours and hachures. Scale 4 inches to one mile, 20 foot contour.
(Peabody.)

1864.

BACHE, A. Map of the State of Virginia Compiled from the best
authorities and printed at the Coast Survey office.

22x34 3/4, colored, hachured. Same as 1862 and 1865. (Amer. Geog. Soc.)

GREEN, W., JR. Map showing the relation of the anthracite coal
region to the great Appalachian coal-field according to Leslie.

Trans. North of England, Inst. Mining Eng., vol. xiii, p. 25. Newcastle-
upon-Tyne, 1864. (Marcou.)

JOHNSON. Johnson's Virginia, Delaware, Maryland and West Vir-
ginia. New York. Johnson & Ward 1864.

17x23. (Phillips.)

LOGAN (WM. E.). Geological map of Canada and the Adjacent
region, including parts of the British provinces and of the United
States.

Accompanying Geol. Survey of Canada (etc.). Montreal, 1865.

19 3/8x8 1/2, 30 colors. Scale 125 miles to an inch. (J. H. U.)

MARTENET, S. Map of Allegany and Garrett Counties.

MS. never published. Scale 1 mile to 1 1/4 inches. (Williams.)

1865.

ANDRIVEAU, GOUJON E. Carte Generale des Etats-Unis et du
Mexique comprenant l'Amerique centrale et les Antilles. Paris 1865.
Atlas Classique et Universel de Geographic.
18 1/8x24 1/8. (Peabody.)