MARYLAND GEOLOGICAL SURVEY 271
1862.

CONRAD, T. A. Catalogue of the Miocene Shells of the Atlantic
Slope.

Proc. Acad. Nat. Sci. Phila., vol. xiv, 1862, pp. 559-582.
Gives reference to original descriptions, but no localities.

———— Description of New, Recent and Miocene Shells.

Proc. Acad. Nat. Sci. Phila., vol. xiv, 1862, pp. 583-586.
Describes a Busycon alveatum from St. Mary's river.

GENTH, F. A. Contributions to Mineralogy.
Amer. Jour. Sci., 2nd ser., vol. xxxiii, 1862, pp. 190-206.

Gives a paragraph on the non-occurrence of chrysolite in Md., pp. 201-202. Analysis
of kerolite from Harford Co., pp. 203-204.

TYSON, PHILIP T. Second Report of Philip T. Tyson, State Agri-
cultural Chemist, to the House of Delegates of Maryland, Jan. 1862,
8vo. 92 pp. Annapolis, 1862.

Md. Sen. Doc. [F].

Treats quite fully of the geology and Industrial resources of Maryland.

1863.

BACHE, A. D. Records and results of a Magnetic Survey of Penn-
sylvania and parts of adjacent states in 1834, '35, '41, '43, '62.
Smithsonian Contrib. Knowledge, vol. xvii, 1863, 88 pp.
Had stations at Baltimore, Frostburg and Frenchtown.

1864.

BACHE, A. D. Abstract of results of a Magnetic Survey of Penn-
sylvania and parts of adjacent States in 1840 and 1841, with some
additional results of 1843 and 1862.

Rep't Supt. Coast and Geodetic Survey, 1862, Washington, 1864, appendix
19, pp. 212-229.

See Schott, C. A., 1896.

CONRAD, T. A. Notes on Shells, with description of new fossil
Genera and Species.

Proc. Acad. Nat. Sci. Phila., vol. xvi, 1864, pp. 211-214.

See p. 213 for description of Dosiniopsis meekii found six miles east of Washington,.
D. C.

PAYNTER, THOS., and GAUSSOIN, EUG. Prospectus of the Bare Hill
Copper Mining Company. Baltimore. 15 pp. 1864.

Contains short reports on the property by Thos. Paynter and Eug. Gaussoin.