33° 
86. 
87. 
88. 
89. 
oO. 
gl. 
gia. 
goa. 
gob. 
QOc. 
Ioo. 
Iol. 
IOotid. 
ANIMAL COMMUNITIES 
Snow, Julia W. The Plankton Algae of Lake Erie. Bull. U.S.F.C., 
Pe 377. G02: 
Jennings, H. S. The Rotatoria of the United States. Bull. U.S.F.C., 
XX, 67-104. 1900. 
On the Protozoa of Lake Erie. Jbid., XIX, 105. 1890. 
Forbes, S. A. Some Entomostraca of Lake Michigan and Adjacent 
Waters. Am. Nat., XVI, 640. 1882. 
Clark, F. N. A Plan for Promoting the White Fish Production of the 
Great Lakes. Bull. Bur. Fish., XXVIII, 637-43. rg1o. 
Baker, F. C. The Mollusca of the Chicago Area. Bull. II, Chicago 
Acad. Sci. In 2 parts. 1898-1902. 
Moore, J. P. Classification of the Leeches of Minnesota. Geol. and 
Nat. Hist. Surv., Zoél. Series No. 5, pp. 67-128. Ig12. 
CHAPTER VI 
Shelford, V. E. Ecological Succession. I, Stream Fishes and the 
Method of Physiographic Analysis. Biol. Bull., XXI, 9-25. 1911. 
Smith, B. G. The Spawning Habits of Chrosomus erythrogaster. 
Biol. Bull., XV, 9-18. 1908. 
Lyon, E. P. On Rheotropism. I, Rheotropism in Fishes. Am. Jour. 
Phys., XII, 149-61. 1904. 
Needham, J. G., and others. Aquatic Insects in the Adirondacks. N.Y. 
State Mus., Bull. 47. 1901. 
Aquatic Insects in New York. N.Y. State Mus., Bull. Ento- 
mology, 18. 1903. 
Reeves, C. D. The Breeding Habits of the Rainbow Darter. Biol. 
Bull., XIV, 35. 1907. 
Needham, J. G., and others. May Flies and Midges. N.Y. State Mus., 
Bull. Entomology, 23. 10905. 
Lefevre, George, and Curtis, W. C. Reproduction and Parasitism in 
the Unionidae. Jour. Exp. Zoél., IX, 79-115. 10910. 
Isely, F.B. Preliminary Note on the Ecology and Juvenile Life of the 
Unionidae. Biol. Bull., XX, 77-80. 1g1T. 
Kingsly, J. S., Editor. Riverside Natural History, Vol. V. Mammals. 
1888. 
Sherman, J. D. Some Habits of the Dytiscidae. Jour. N.Y. Ent. 
SOC. ew A354. 
Baker, F. C. The Ecology of Skokie Marsh with Particular Reference 
to Mullusca. Bull. Ill. State Lab. Nat. Hist., VIII, 441-97. gro. 
Ortmann, A. E. The Crawfishes of the State of Pennsylvania. Mem. 
Carn. Mus. Pittsburgh, II, 343-523. 1907. 
Pearse, A. S. The Crawfishes of Michigan. Mich. Geol. and Biol. 
Surv. Pub. Biol. Series No. 1, pp. 9-22. IgI0. 
