LYMNJEID.E OF NORTH AMERICA. 505 



Troschel, F. H. 



1839. Review of Molluscan Literature. Weigmann's Archiv. fur Natur., V, 



■pt. 2, p. 224. 

 True, Joseph. 



1857. Shells Gathered about Salem, Mass., by Joseph True, with Particular 



Localities Designated, and Remarks on the Species. Proc. Essex 



Inst., II, pp. 187-197. 

 Tryon, Geo. W., Jr. 



1861. On .the Mollusca of Harper's Ferry, Virginia. Proc. Phil. Acad., pp. 



396-399. 

 1863, a. Descriptions of New Species of Fresh-water Mollusca, belonging 



to the Families Amnicolidae, Valvatidae and Limnseidae, inhabiting 



California. Proc. Phil. Acad., pp. 147-150. 

 1863, b. Descriptions of Two New Species of Fresh-water Mollusca, from 



Panama. Proc. Phil. Acad., p. 146. 

 1865, a. Catalogue of Mollusca, Collected by Prof. D. S. Sheldon, at Daven- 

 port, Iowa. Amer. Journ. Conch., I, pp. 68-70. 

 1865, b. Descriptions of New Species of North American Limnaeidae. 



Amer. Journ. Conch., I, pp. 223-231. 



1865, c. Catalogue of the Species of Limnaea inhabiting the United States. 



Amer. Journ. Conch., I, p. 247-258. 



1866, a. Descriptions of New Fresh-water Shells of the United States. 



Amer. Journ. Conch., II, pp. 4-7. 

 1866, b. Descriptions of New Exotic Fresh-water Mollusca. Amer. Journ. 

 Conch., II, pp. 8-11. 



1866. c. Descriptions of New Fluviatile Mollusca. Amer. Journ. Conch., 



II, pp. 111-113. 



1867. Review of Binney's Land and Fresh-water Shells of North America, 

 Part II. Amer. Journ. Conch., Ill, pp. 195-197. 



1868. Notes on Mollusca Collected by Dr. F. V. Hayden in Nebraska. 

 Amer. Journ. Conch., IV, pp. 150-151. 



1872. Continuation of Haldeman's Monograph of the Fresh-water Univalve 

 Mollusca of the United States. Philadelphia; Limnaea, pp. 83-124. 



1873. Land and Fluviatile Mollusca from Utah. Proc. Phil. Acad., 1873, 

 pp. 285-286. 



1882-84. Structural and Systematic Conchology, III, p. 100, 1884; also 

 Vol. I. 

 Tufts, Samuel, Jr. 



1856. A List of Shells Collected at Swamscot, Lynn and Vicinity. Proc. 

 Essex Inst., I, pp. 25-32. 



1859. Catalogue of Shells Deposited in the State Cabinet. Cat. Mass. State 

 Cabinet, Appendix, pp. 85-88. 

 Tyrrell, J. B. 



1887. Report on a Part of Northern Alberta and Portions of Adjacent Dis- 

 tricts of Assiniboia and Saskatchewan. Rep. Geol. & Nat. Hist. 

 Surv. Can., n. s., II, E. 

 Udden, J. A. 



1898. Some Preglacial Soils. Proc. Iowa Acad. Sci., V, pp. 102-104. 



1901. Geology of Pottawattamie County. Iowa Geol. Surv., XI, pp. 199- 

 277. 



