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 1905, b. On the Relations of the Land and Fresh-water Mollusk Fauna of 



Alaska and Eastern Siberia. Popular Science Monthly, LXVI, pp. 



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 Ball, W. H., and Harris, G. D. 



1892. Correlation Papers. Neocene. Bull. U. S. Geol. Surv., No. 84 (p. 286). 

 Ball, W. H., and Simpson, C. T. 



1900. The Mollusca of Porto Rico. Bull. U. S. Fish Com., XX, pt. 1, pp. 



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 Bana, James B. 



1896. Manual of Geology, p. 966. 

 Baniels, L. E. 



1902, a. A Check-List of Indiana Mollusca, with Localities. An. Rep. Bept. 

 Geol. and Nat. Res. Ind., XXVII, pp. 629-652. 



1902, b. See Blatehley. 



1909. Records of Minnesota Mollusks. Nautilus, XXII, pp. 119-121. 

 Barton, N. H. 



1908. Paleozoic and Mesozoic of Central Wyoming. Bull. Geol. Soc. Amer., 

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Barton, N. H., and Siebenthal, C. E. 



1909. Geology and Mineral Resources of the Laramie Basin, Wyoming. 

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Bavis, W. M. 



1900. The Fresh-water Tertiary Formations of the Rocky Mountain Region. 



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 Bawson, George Mercer. 



1875. Land and Fresh-water Mollusca Collected during the Summers of 

 1873-74, in the Vicinity of the Forty-ninth Parallel Lake of the 

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 Bawson, J. W. 



1857. On the Newer Pliocene and Post Pliocene Beposits of the Vicinity of 

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1859. Additional Notes on the Post Pliocene Beposits of the St. Lawrence 

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1860. Notice of Tertiary Fossils from Labrador, Maine, etc., and Remarks 

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1872. The Post Pliocene Geology of Canada. Can. Nat. & Geol., n. s., VI, 



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 Bean, George W. 



1892. Catalogue of the Shell-bearing Mollusca of Portage Co., Ohio. Amer. 

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