248 BIBLIOGRAPHY AND CARTOGRAPHY

MERRICK, WM. D., Chairman. Report of the Committee on In-
ternal Improvement relative to a Map and Survey of the State of
Maryland. Annapolis, 1834, 8vo, 6 pp.

Md. House of Delegates, Dec. Sess., 1833.

MORTON, S. G. Synopsis of the organic remains of the Cretaceous
group of the United States. To which is added an appendix contain-
ing a tabular view of the Tertiary fossils hitherto discovered in North
America. 8vo, 88 pp. Phila. 1834.

(Abst.) Amer. Jour. Sci., vol. xxvii, 1835, pp. 377-381.

PIGMAN. Mr. Pigman's Second Report relative to the Southern
and Western Boundaries of this State, with the accompanying Docu-
ments. 8vo. 11 pp. [Annapolis, 1834.]

Md. Pub. Doc., Dec. Sess., 1833.

1835.
ALEXANDER, J. H. Engineer's report 1834 (issued separately).

(See Ducatel and Alexander.)

———— Report on the New Map of Maryland 1834. n. d. 8vo.
15 pp.

Md. Pub. Doc., Dec. Sess., 1834.

ANON. Ninth Annual Report of the President and Directors to
the Stockholders of the Baltimore and Ohio Rail Road Company.
8vo. 174 pp. 1835.

Contains as appendix A, Sixth Annual Report of the Chief Engineer.

Folded map of the country between Cumberland and the Ohio.

BACHE, A. D., and COURTENAY, E. H. Observations to determine
the Magnetic Dip at Baltimore, Philadelphia, New York [etc.].
(Read Nov. 7, 1834.)

Trans. Amer. Phil. Soc., vol. v, n. s., 1835, pp. 209-215.

CONRAD, T. A. Observations on a portion of the Atlantic Tertiary
Region.

Trans. Geol. Soc. Penn., vol. i, 1835, pp. 335-341, pl. 13.

Upper Marlboro and Piscataway, Md., deposits considered; also those of City Point,
Va.

Includes figures and descriptions of Panopea elongata. Modiola cretacea. and
Turritella humerosa. Considers the formations to be either Eocene or Neocene and not
Miocene, as there is no general transition. The Marls he regards as Tertiary, not
Cretaceous.