302 BIBLIOGRAPHY AND CARTOGRAPHY

MEYER, OTTO. Some remarks on the present state of our Knowl-
edge of the North American Eastern Tertiary.

Amer. Geol., vol. ii, 1888, pp. 88-94.
Objects to Hellprin's correlations.

SWANK, JAS. M. The Iron and Steel Industries of the United
States in 1887 and 1888.

Mineral Resources U. S., 1887, Washington, 1888.

Statistics, p. 11. First coke furnaces in the South established near Frostburg in
1839, p. 22.

UHLER, P. E. Sketch of the History of the Maryland Academy
of Science.

Trans. Maryland Acad. Sci., vol. i, 1888, pp. 1-10.

———— The Albirupean Formation and its nearest relatives in
Maryland.

Proc. Amer. Phil. Soc., vol. xxv, 1888, pp. 42-53.

Reply by H. Carville Lewis, pp. 53-54. A. Hellprin, p. 54.

(Uhler) introduces Albirupean and Baltimorean, giving vertical sections and a map
showing distribution of his formations.

(Lewis) objects to terms as unnecessary and says that " Albirupean " as used
includes Mesozoic. Heilprin agrees with Lewis.

———— Observations on the Eocene Tertiary and its Cretaceous
Associates in the State of Maryland.

Trans. Md. Acad. Sci., vol. 9 1888, pp. 11-32.

Description of distribution, characteristics, paleontology, etc., of the Cretaceous
and Eocene; and discussions of the relations and correlations of some portions of the
latter.

WARD, LESTER F. Administrative Reports. Geologic and Paleon-
tologic Investigations.

7th Ann. Rept. U. S. Geol. Surv., 1885-86, Washington, 1888, p. 125.

———— Evidence of Fossil Plants as to the Age of the Potomac
Formation.

Amer. Jour. Sci., 3rd ser., vol. xxxvi, 1888, pp. 119-131.

Concludes that the fossil plants of the Potomac present no serious obstacle to its
reference to the Jurassic.

WHITNEY, J. D. Physical Geography and Statistics. Part II. of
article on United States.

Encyclopedia Britannica, vol. xxiii, New York, 1888, pp. 791-817.
Gives summary of Information on topography, geology, climate, vegetation and
mineral resources.

WILLIAMS, GEORGE H. Geology of the Baltimore Region.

Johns Hopkins Univ. Cir. No. 65, vol. vii, 1888, p. 73.

Report of a lecture in which the author refers to the sequence of the eruptions in
the Plutonic rocks of the area.