MARYLAND GEOLOGICAL SURVEY 389

HITCHCOCK, C. H. Gray's Geological Map of the United States.
The National Atlas. Stedman & Brown, Phila., 1885, p. 205.
2494x15 5/8, 9 colors. Scale 1/7466470, or 118 miles to an inch.

Little or no alluvium on Western Shore. Seven formations distinguished in Mary-
land. (J. H. U.)

ROBINSON, E. Map of Baltimore and Vicinity. E. Robinson (?).
New York, 84 Nassau St. 1882. (Williams.)

U. S. COAST AND GEODETIC SURVEY. Baltimore Harbor and Ap-
proaches with sub-charts of the Basin and Sparrows Point on scale
1/10000. No. 384. First edition (last edition, 1895).

27x39 (class F). Scale 1/40000, or 1.58 inches to a mile.

———— Potomac River. Lower Cedar Point to Indian Head. No.

390.

First edition, 1862.

23x29 (class F). Scale 1/60000, or 1.06 inches to a mile.

1884.

CHESTER, F. D. Map showing Distribution of Delaware Gravels—
Northern area.

Amer. Jour. Sci., 3rd ser., vol. xxvii, 1884, p. 192.

3 3/4x4 3/4. Scale about 9 miles to an inch.

Comprises in area the larger portion of New Castle and all of Cecil county, Md.

DE LAET. Nova Anglia, Novum Belgium et Virginia (1630).

Winsor's Narrative and Critical History, vol. iii. Boston, 1884. p. 124.

FARRER, VIRGINIA. A mapp of Virginia discovered to ye Hills

[etc].

Winsor's Narrative and Critical History, vol. iii. Boston, 1884. p. 464.
See 1651.

HEILPRIN, A. Heilprin on Tertiary Geology of Eastern and
Southern United States.

Contributions to the Tertiary Geology and Paleontology of the United
States, by Angelo Heilprin. Phila., 1884.

11x15, colored. Scale about 120 miles to an inch.

HEILPRIN, A. On Tertiary Geology of Eastern and Southern
United States.

Jour. Acad. Nat. Sci., Phila., 2nd ser., vol. ix, 1884.
10x15, outline with six colors. Scale about 120 miles to an inch.