MARYLAND GEOLOGICAL SURVEY 323

DAY, WM. C. Stone.

Mineral Resources U. S., 1893, Washington, 1894.

Statistics on granite industry lor 1893, pp. 544, 545; marble, p. 548; slate, p. 550;
sandstone, p. 553.

EMMONS, S. F. Geological Distribution of the useful metals in the
United States.

Trans. Amer. Inst. Min. Eng., vol. xxii, 1894, pp. 53-95.

Mention of the Cretaceous iron ores of Maryland and of the Maryland copper
deposits.

GANNETT, HENRY. Results of Primary Triangulation.
Bull. U. S. Geol. Surv. No. 122, 1894, pp. 64-65.
House Misc. Doc., 53rd Cong., 1st sess., vol. ix, No. 78.

Reference to only a few stations in Maryland: Sugarloaf, Frederick county; Mary-
land Heights, Washington county; Dan and Hlghrock, Garrett county.

GRIMSLEY, G. P. Granite of Cecil County in Northeastern Mary-
land.

Jour. Cincinnati Soc. Nat. Hist., vol. xvii, 1894, pp. 56-67, 87-114.
Description of Port Deposit and Rowlandsville granites with geological map.

HARRIS, G. D. On the Geological Position of the Eocene Deposits
of Maryland and Virginia.

Amer. Jour. Sci., 3rd ser., vol. xlvii, 1894, pp. 301-304, figs. 1-3.

The author regards the Pamunkey formation as the base of the " Lignitic " stage,
which is well toward the bottom of the Eocene series of America.

KEITH, ARTHUR. Geology of the Catoctin Belt.

14th Ann. Rept. U. S. Geol. Surv., 1892-93, Washington, 1894, part ii, pp.
285-395, maps and plates.

House Exec. Doc., 53rd Cong., 2nd sess., vol. xvii, p. 285.
(Rev.) Sciences, n. s. vol. ii, 1895, p. 97.
A full discussion of the area studied.

———— Harper's Ferry Folio, Explanatory Sheets.
U. S. Geol. Surv. Geol. Atlas, folio No. 10, Washington, 1894.
Brief epitomized discussion of the local geology, structure and geological history of
the area included.

MARYLAND STATE WEATHER SERVICE. The Climatology and
Physical Features of Maryland.

First Biennial Report of the Maryland State Weather Service for the
years 1892 and 1893. Baltimore, 1894.

NEWBURY, S. B. Cement.

Mineral Resources U. S., 1893, Washington, 1894.
Statistics on hydraulic cement, p. 619.