472 THE CHICAGO ACADEMY OF SCIENCES. 



1909, b. Description of a New Fossil Lymnaea. Nautilus, XXIII, pp. 19-21, 



June. 

 1909, c. Range of Lymnaea Umbilicata. Nautilus, XXIII, p. 80, November. 



1909, d. Mollusks from Kansas and Oklahoma. Nautilus, XXIII, pp. 91- 



94, December. 



1910, a. The Ecology of the Skokie Marsh Area, with Special Reference 



to the Mollusca. Trans. 111. State Acad. Sci., Ill, pp. 106-108. 



1910, b. A New Variety of Lymnaea Stagnalis. Nautilus, XXIII, pp. 112- 

 113, February. 



1910, c. The Ecology of the Skokie Mansh Area, with special reference to 

 the Mollusca. Bull. 111. State Lab. Nat. Hist., VIII, pp. 437-499, 1910. 



1910, d. Preliminary note on the Life of Glacial Lake Chicago. Science, 

 n. s., XXXI, No. 801, pp. 715-717, May 6. 



1910, e. Description of a New Lymnaea. Nautilus, XXIV, pp. 58-60, Sep- 

 tember. 



1910, f. Mollusks of Unionville, Conn. Nautilus, XXIV, pp. 68-69, October. 

 Baker, H. Harrington. 



1909. Key to the Genera of Gastropoda of Michigan. An. Rep, Mich. 

 Acad. Sci., XI, pp. 134-140. 



1910. Variation in Lymnaea Reflexa Say, from Huron County Rep. Mich. 

 Acad. Sci, XII, pp. 60-63. 



Bartlett, John. 



1866. Catalogue of Shells found in the Ponds of Haverhill, Mass, and in 

 the Merrimack River near that Town. Proc. Essex. lust., V, p. 45. 

 Bather, F. A. 



" 1909. Visit to the Florissant Exhibition in the British Museum (Natural 



Hiistory). Proc. Geol's. Assoc, XXI, pp. 159-165. 

 Baudelot, M. 



1863. Recharches sur 1'appariel generateur des Mollusques Gasteropodes. 



Ann. des Sci. Nat. Zool., IV, XIX, pp. 135-222, 268-294. 

 Beauchamp, W. M. 



1886. Land and Fresh-Water Shells of Onondaga County and New York 



State. Baldwinsville, N. Y. 

 Beck, H. 



1837. Index MoHuscorum Praesentis. JEvi Musei Principis Augustissimi 



Cristiani Frederici. Hafinae. 

 Beecher, Charles. 



1876. See Walker. 

 Bell, Robert. 



1859, a. Catalogue of Animals and Plants Collected and Observed on the 

 Southeast Side of the St. Lawrence, from Quebec to Gaspe, and in 

 the Counties of Rimouski, Gaspe and Bonaventure. Geol. Surv. Can, 

 Rep. Prog, 1858, pp. 243-255. 



1859, b. Notes on the Natural History of the Gulf of St. Lawrence and the 

 Distribution of the Mollusca of Eastern Canada. Can. Nat. & Geol, 

 IV, pp. 197-220. 



1861, a. On the Occurrence of Fresh- Water Shells in some of our Post 

 Tertiary Deposits. Can. Nat. & Geol, VI, pp. 42-51. 



