Baker — Notes on Planorbis Truncatus Miles. 109 



1865. Binney^ W. G., and Bland^ Thomas. Land and 

 Fresh Water Shells of North America, Part II, 

 Pulmonata Limnophila and Thalassophila, p. 121, 

 fig. 202, Smith Miscel. Coll., No. 143. 



1868. Cumer, A. 0. List of the Shell-bearing Mollusca of 

 Michigan. Kent Sci. Inst. Miscel. Pub. No. 1. 



1870. Tyron, George W. Continuation of Haldeman's 

 Monograph of the Fresh-water Univalve Mollusca 

 of the United States, p. 204, pi. 6, figs. 17, 18, 19. 



1879. Walker, Bryant. Catalogue of the Shell-bearing 

 Mollusca of Michigan. Journ. of Conch., II, p. 

 325. 



1881. De Camp, W. H. List of the Shell-bearing Mollusca 

 of Michigan. Kent Sci. Inst. Miscel. Pub. No. 5. 



1888. Walker, Bryant. On the re-discovery of Planorbis 

 multivolvis Case and P. truncatus Miles. Journ. of 

 Conch., V, p. 330. 



1893. Walker, Bryant. The Shell-bearing Mollusca of 



Michigan. The Nautilus, VII, p. 136. 



1894. Walker, Bryant. Review of Our Present Knowledge 



of the Molluscan Fauna of Michigan, pp. 4, 8, 18. 



1896. Baker, Frank C. On the correct position of the 



aperture in Planorbis. Journ. Cin. Soc. N. H., v. 

 XIX, p. 46. 



1897. Baker, Frank C. Notes on Radulae. Journ. Cin. 



Soc. Nat. Hist., v. XIX, p. 85. 



1898. Baker, Frank C. A Day on the Chicago Drainage 



Canal. The Nautilus, XII, p. 64. 



1898. Baker, Frank G. Mollusca of the Chicago Area. 

 Part I, p. 22. 



