LYMN^EID^E OF NORTH AMERICA. 471 



1901, a. A Revision of the Limnaeas of Northern Illinois. Trans. Acad. 



Sci., St. Louis, XI, pp. 1-24. 

 1901, b. Description of a New Species of Limnsea. Bull Chi. Aoad. Sci., 



II, No. 4, pp. 229-230. 

 1901, c. The Molluscan Fauna of the Genesee River. Amer. Nat., XXXV, 



pp. 659-664, August. 

 1901, d. New Varieties of Fresh-water Shells. Nautilus, XV, pp. 17-18, 



June. 



1901, e. Limnsea Auricularia in America. Nautilus, XV, p. 59, September. 



1902, The Mollusca of the Chicago Area. Part II, Gastropoda. Bull. Nat. 

 Hist. Surv. Chi. Acad. Sci., No. Ill, pt. 2. 



1903, a. Shells of Land and Water. A Familiar Introduction to the Study 



of Mollusks, Chicago. 



1903, b. Shell Collecting on the Mississippi. Nautilus, XVI, pp. 102-105, 

 January. 



1903, c. Pleistocene Mollusks of White Pond, New Jersey. Nautilus, XVII, 



pp. 38-39, August. 



1904, a. Mollusks of Cedar Lake, Indiana. Nautilus, XVII, p. 112-113, 



February. 

 1904, b. New Varieties of American Limnaeas. Nautilus, XVIII, pp. 10-12, 



May. 

 1904, c. New American Limnaea<s, II. Nautilus, XVIII, pp. 62-63, October. 



1904, d. The Molluscan Fauna of the Dells of Wisconsin. Trans. Acad. 



Sci., St. Louis, XIV, pp. 99-105. 



1905, a. Critical Notes on the Smaller Lymnaeas. Nautilus, XVIII, pp. 



125-127, March. 



1905, b. New Species of Lymnaea. Nautilus, XVIII, pp. 141-142, April. 



1905, c. Notes on a Collection of Shells from Baas Lake, Indiana. Nauti- 

 lus, XIX, pp. 27-28, July. 



1905, d. A New Species of Lymnaea from Ohio, with Notes on Lymnaea 

 Parva, Lea. Nautilus, XIX, pp. 51-53, September. 



1905, e. The Molluscan Fauna of McGregor, Iowa. Trans. Acad. Sci. St. 

 Louis, XV, pp. 249-257. 



1905, f. Notes on the Genitalia of Lyrnnsea. Amer. Nat., XXXIX, pp. 665- 



679, September. 



1906, a. Application of DeVries Mutation Theory to the Mollusca. Amer. 



Nat., XL, pp. 327-334, May. 

 1906, c. Notes on a Collection of Mollusks from the Vicinity of Alpena, 



Michigan. Trans. Acad. Sci. St. Louis, XVI, pp. 1-15. 

 1906, c. A Catalogue of the Mollusca of Illinois. Bull. 111. State Lab. 



N. H., .VII, No. 6, pp. 53-136. 



1906, d. Lymnaea Hinkleyi N. Sp. Nautilus, XIX, No. 12, pp. 142-143, 



April. 



1907, a. Descriptions of New Species of Lymnaea. Nautilus, XX, pp. 125- 



127, March. 



1907, b. Two New Species of Lymnaea. Nautilus, XXI, No. 5, pp. 52-55, 



September. 



1908, Note on Lymnaea Desidiosa Say. Nautilus, XXII, pp. 20-23, June. 



1909, a. A. New Species of Lymnaea. Nautilus, XXII, pp. 140-141, April. 



