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370 THE CHICAGO ACADEMY OF SCIENCES. 
COCKERELL, T. D. A. (Ckll.) A List of the Mollusca of Colorado. (From 
The Nautilus, Vol. III, pp. 99-103, 1890.) 
..Agriolimax campestris in New Mexico. (From same, Vol. VIII, p. 57, 
1894.) 
.. Notes on the North American Species of Succinea. (From the same, 
Vol. VI, pp. 21, 29, 1892; Vol. VII, p. 43, 1893.) 
..In the British Naturalist, April, 1895, p. 81. Also The Nautilus, Vol. 
XII, No. 10, p. 120, Feb., 1899. 
..In Science Gossip, p. 257, 1889. 
.. Bifidaria armifera var. novruidosensis. (The Nautilus, Vol. XIII, p. 
36, 1899.) 
COLLIN, G. Sur la Limnea Stagnalis Linné et sur ses variétés observées en 
Belgique. (From Ann. Soc. Mal. Belg., Tome VII, pp. 81-94, 1872.) | 
CONRAD, Timotuy. (Conr.) Description of Some New Species of Fresh- 
water Shells from Alabama, Tennessee, etc. (From. Amer. Journ. Sci., 
I series, Vol. XXV, pp. 338-343, 1834.) 
.. Monograph of the Family Unionidz, or Naiades of Lamarck, of North 
America. Philadelphia, Pa., 1835-1838. (Mon. Unio.) 
.. New Fresh-water Shells of the United States, with colored illustrations 
and a Monograph of the genus Anculotus of Say; also a Synopsis of 
the American Naiades. Philadelphia, 1834. (New /. W. Sh.) 
CooPER, J. G. (Coop.) On New Californian Pulmonata, etc. (From Proc. 
Phil. Acad., pp. 143-154, 1872.) 
COOPER, WILLIAM. (Coop.) List of Shells Collected by Mr. Schoolcraft in 
the Western and Northwestern Territory. (From Narrative of an Ex- 
pedition through the Upper Missouri to Itasca Lake, etc., under the di- 
rection of Henry B. Schoolcraft. Appendix. New York, 1854.) (AZZ. 
Narr. Exp.) 
Cox, E.T. Snails Injurious to the Strawberry. (From the American Natu- 
ralist, Vol. II, No. 12, Feb., 1869.) 
CRAGIN, FRANCIS W. A New Species of Unio from Indian Territory. 
(From Bull. Wash. Coll. Lab. N. H., Vol. II, p. 6, 1887.) 
CRANDALL, O. A. The America Physe. (The Nautilus, Vol. XV, Nos. 
3, 4, 5, 6, 1901.) 
CURRIER,A.O. (Curr.) Descriptions of New Species of Fresh-water Shells 
from Michigan. (From Amer. Journ. Conch., Vol. III, pp. 112-118, 
1867.) 
DALL, WILLIAM HEALY. (Dall.) Contributions to the Tertiary Fauna of 
Florida, with especial reference to the Miocene Silex beds of Tampa 
and the Pliocene beds of the Caloosahatchie River. (From Trans. 
Wag. Inst. Sci., Vol. III, part 3, 1895.) 
.. Instructions for Collecting Mollusks and other Useful Hints for the 
Conchologist. (Part G, Bull. U.S. Nat. Mus., No. 39, 1892.) 
.... Notes on some Floridan Land and Fresh-water Shells, witha Revision 
of the Auriculacea of the Eastern United States. (From Proc. U.S. 
Nat. Mus., pp. 255-289, 1885.) 
..On the genus Pompholyx and its allies, with a revision of the Limnz- 
idz of authors. (From Ann. N.Y. Lyc. N.H., Vol. IX, pp. 333-361, 1870.) 
.-Preliminary Report on the Collection of Mollusca and Brachiopoda 
obtained in 1887-1888. (Scientific Results of Explorations of the U.S. 
