GEOLOGICAL SURVEY

I.
LIST OF .A-UTHOKS.
Agassiz, Louis. Mouographies d'e'chinodermes
vivans et fossiles. Neuchatel,
1838.
Bailey, J. W. Notes concerning the minerals
and fossils collected by Lieut. J.
W. Abert while engaged in the geographical
examination of New Mexico.
Report of Lieut. J. \V. Abert of his examinations
of New Mexico in the yeard 1846-47. Ex.
Doc. No. 41, pp. 5-17-548. 2 plates.
Barcena, M. Materiales para la formacion
de una obra de Paleontologia Mexican
a.
An. Museo Nac. Mex., torao 1, pp. 85-91; 195-
202; 283-280. Mexico, 1877.
Blake, W. P. Description of the fossils
collected by Capt. John Pope.
Hop. Expl, and Sur. 11. B. B. Mississippi river
to Pacific ocean, vol. 2; Rep. on the Geology of
the Thirty Second Parallel, pp. 39,40. Wash., 1855.
Bolsche, Wilh. Die Kreide von New
Jersey. Polypi.
Zeitsch. Deutsch. duol. Qes., Band 22, pp. 215-
217. Berlin, 1870.
Bronn, H. G. Lethoea Gebgnostica,
Erster Band, 544 pp. Stuttgart, 1835-
1837.
Lethsea Geognostica, Zweiter Band,
1346 pp. Stuttgart, 1838.
Brown, A. P. On the Young of Bacnlites
compressus Say.
Proc. Acad. Nat. Sci., Phila., vol. 43, pp. 159-
100, figs. 1-6, Phila., 1891.
Clark, W. B. A revision of the Cretaceous
Echinoidea of North America.
Johns Hopkins University Circular No. 86,
pp. [uot numbered]. Baltimore, 1891.
Conrad, T. A. Description of Ostrea
congesta and Avicula cretacea.
Bop. Hydrog. Basin Up. Miss, river, I. N.
Nicollet, app. C, pp. 169,170. Wash., 1843.
Descriptions of one new Cretaceous,
and seven new Eocene fossils.
Jour. Acad. Nat. Sci., Phila., 2d ser., vol. 2,
part 1, pp. 39-41, pi. 1. Phila., 1850 (1850-54).
(9)
Conrad, T. A. Continued.
Notes on shells, with descriptions of
new species.
Proc. Acad. Nat. Sci., Phila., vol.6, pp. 199-200.
Phila., 1804.
Notes on shells.
Proc. Acad. Nat. Sci., Phila., vol. 6, pp. 320-321.
Phila., 1854.
Descriptions of new fossil shells of
the United States.
Jour. Acad. Nat. Sci., Phila., 2d ser., vol. 2,
part 3, pp. 273-276, pi. 24. Phila., 1853 (1850-54).
Descriptions of new fossil shells of
the United States.
Jour. Acad. Nat. Sci., Phila., 2d ser., vol. 2,
part 4, pp. 299-300, pi. 27. Pliila., 1854 (1850-64).
Report on the fossil shells collected
in California by W. P. Blake, geologist
of the expedition under the command
of Lieut. R. S.Williamsou, United States
Topographical Engineers, 1853.
Bop. Expl. and Sur. 11. 11. B. Miss, river to
Pacific Ocean, app. Prelim. Geol. Bep. of W. P.
Blake, Pal., pp. 5-20. Washington, 1855, 11.
Doc. 129.
Descriptions of eighteen new Cretaceous
and Tertiary fossils, etc.
Proc. Acad. Nat. Sci., Phila., vol. 7, pp. 2ii5-
208. Phila., 1850.
DescriptionsofoneTertiary and eight
new Cretaceous fossils from Texas, in
the collection of Major Emory.
Proc. Acad. Nat. Sci.,'Phila., vol. 7, pp. 203-200.
Phila.. 1856.
Descriptions of the fossil shells.
Bep. Expl. and Sur. B. B. B. Miss, river to
Pacific ocean, vol. 5, part 2, app. art. u, pp. 317-
329. Wash.. 1850.
Descriptions of Cretaceous and Tertiary
fossils.
Bep. U. S. and M.ox. Bound. Sur., vol. 1, pt.
2, pp. 141-143, 147-174, pis. 2-21. Wash., l«f>7.
Description of a new species of Myaoites.
Proc. Acad. Nat. Sci., Phila., vol. 9, p. 100 [pi
7 [1], vol. 12]. Phila., 1858.