MARYLAND GEOLOGICAL SURVEY 305

RUSSELL, I. C. The Newark System.

Amer. Geol., vol. iii, 1889, pp. 178-182.

A discussion of nomenclature and adoption of the term Newark.

———— Subaerial Decay of Rocks and Origin of the Red Color of
Certain Formations.

Bull. U. S. Geol. Surv. No. 52, 1889, 65 pp. 5 plates.

House Misc. Doc., 50th Cong., 2nd sess., vol. xi, No. 138.

(Abst.) Amer. Geol., vol. v, 1890, pp. 110-111.

Citation of illustrations from Maryland and Incidentally comparison of the amount
of decay in that state with the decay in other states north and south, pp. 9, 12, 13, 23.

SCHUCHERT, CHAS. A list of Fossils Occurring in the Oriskany
Sandstone of Maryland, New York and Ontario.

8th Ann. Rept. N. Y. State Geol., Albany, 1889, pp. 50-54.

42ncl Ann. Rept. N. Y. State Museum, Albany, 1889, pp. 396-400.

Enumerates 63 species from Cumberland.

UHLER, P. R. Additions to observations on the Cretaceous and
Eocene formations of Maryland.

Trans. Md. Acad. Sci., vol. i, 1889, pp. 45-72.

An account of the characteristics, fossils and relations at various localities.

WARD, LESTER F. The Geographical Distribution of Fossil Plants.

8th Ann. Rept, U. S. Geol. Surv., 1886-87, Washington, 18S9, part ii, pp.
663-960, maps.

Refers to the fossil plant deposits at Frostburg, Baltimore, Grove Point, Deep Run,
Jessup's Cut, and Beltsville, p. 647. Pages 870-872 deal particularly with Maryland.

———— Administrative Reports. Geologic and Paleontologic In-
vestigations.

8th Ann. Rept. U. S. Geol. Surv., Washington, 1889, part i, pp. 184-188.

WHITE, CHAS. A. The North American Mesozoic.

Science, vol. xiv, 1889, p. 160.

(Abst.) Amer. Assoc. Adv. Sci., vol. xxxviii, 1890, p. 207.

Some reference to fossils found by Tyson in Maryland.

WILLIAMS, GEORGE H. Contributions to the Mineralogy of Mary-
land.

Johns Hopkins Univ. Cir. No. 75, vol. viii, 1889, pp. 99-100.

A supplement to " Notes on the minerals occurring in the neighborhood of Balti-
more. 1887." Enumerates minerals and localities about Baltimore and throughout the
state.

1890.

ANON. Mining. Notes.
Eng. and Min. Jour., vol. xlix, 1890.
Statistics on coal output and accidents, p. 267.