00961cam a22002651 4500 f 22000043 DLC 20260227111248.0 850402s1922 dcuf b f000 0 eng c f 22000043 (OCoLC)11877219 U.S. Bur. of fish. Library CSjU OCoLC DLC premarc QL537.C5 L4 Leathers, Adelbert Llewellyn, 1881- Ecological study of aquatic midges and some related insects with special reference to feeding habits. By Adelbert L. Leathers ... Washington, Govt. Print. Off., 1922. 61 p. plates. 28 cm. U.S. Bureau of Fisheries. Doc. 915 From Bulletin of the Bureau of Fisheries, vol. XXXVIII, 1921-22. Published also as thesis (Ph. D.) Cornell University, 1916. Bibliography: p. 60-61. Aquatic insects. Animal ecology. 23264 23264