23. Ambloplites rupestris (Raf.). In main stream and one tributary. 24. Apomotis cyanellus (Raf.). Taken in Cold Run. 25. Lepomis megalotis (Raf.). Taken only in the main stream. 26. Eupomotis gibbosus (Lin.). One specimen taken in a tributary; determined by Dr. Evermann. Numbers 25 and 26 probably represent one species. 27. Micropterus dolomieu Lac. Taken only in the main stream. 28. Boleosoma nigrum (Raf.). Everywhere. 29. Etheostoma flabellare Raf. In the main stream and Cold Run. 30. Cottus ictalops (Raf.). Taken only in Cold Run. * * * * * MR. A. J. PIETERS, Assistant Botanist in the U. S. Dept. of Agriculture, has written an interesting and useful article[1] on the plants of western Lake Erie. This report should be read by all who are interested in the hydrophytes of Ohio, or in the flora and fauna of Lake Erie. In addition to some introductory remarks, the paper treats of the plants in Put-in-Bay, in Squaw Harbor, near Gibraltar Island, in Hatchery Bay and in the open lake, and the plants of East Harbor. The swamp vegetation is also discussed, including the plants in the Portage River swamps and in the swamps about Sandusky Bay. The ecological conditions and the ecological adaptations of the flora are treated quite fully, and at the end are given alphabetical lists of the plants studied, including angiosperms, stoneworts and desmids. JOHN H. SCHAFFNER. Footnote 1: A. J. PIETERS. “The Plants of Western Lake Erie, with Observations on their Distribution.” Bull. U. S. Fish Commission, 1901, pp. 57–79. Pls. 11–20. COLLECTING TABANIDÆ. JAMES S. HINE. The habits of flies belonging to the family Tabanidæ, commonly called horse-flies or gad-flies, furnish much material for study and observation. I take this opportunity to record some of the notes which I have taken in the last few years while endeavoring to collect and study the local species of the family. Although the eggs, larvæ and pupæ of many species have been studied, what I have to say in this paper pertains wholly to the adults. Members of the family are usually taken by every entomologist who does general collecting, but as a usual thing males are seldom taken; in fact this sex is so poorly represented in collections that no key has been published for identifying the males of our American species. The student must use the key to the females as far as possible and guess at the rest. In very many cases the male is not even described, so that sometimes, when the sexes are unlike, they can be associated only by observations in the field. By careful collecting and observation we have procured practically all of our local species in both sexes, and the derived benefit, satisfaction and enjoyment have paid us fully for our time and pains.