In the broader distributional sense those fishes that seemed most tolerant of intermittency (_Lepomis cyanellus_, _Lepomis humilis_, _Ictalurus melas_, _Notropis lutrensis_) are widely distributed in the Arkansas River Basin, and are common in the western part of the Arkansas River Basin. Species less tolerant of intermittency are _Notropis boops_, _Notropis camurus_, _Notropis rubellus_, _Notropis volucellus_, and _Pimephales tenellus_; they have not been taken far west of the area studied, and become more common east of it. LITERATURE CITED BASS, N. W. 1929. The geology of Cowley County, Kansas. Kansas Geol. Survey Bull., 12:1-203, 23 figs., 12 pls. BIEBER, R. P. 1932. Frontier life in the army, 1854-1861. Southwest Historical Series, 2:1-330. BREUKELMAN, J. 1940. A collection of fishes in the State University Museum. Trans. Kansas Acad. Sci., 43:377-384. BUCK, H., and CROSS, F. B. 1951. Early limnological and fish population conditions of Canton Reservoir, Oklahoma, and fishery management recommendations. A Report to the Oklahoma Game and Fish Council reprinted by the Research Foundation, Oklahoma A&M College. 110 pp., 17 figs. CALDWELL, M. B. 1937. The southern Kansas boundary survey. Kansas Hist. Quart., 6:339-377. CLAPP, A. 1920. Stream pollution. Kansas Fish and Game Department Bull., 6:33. CROSS, F. B. 1950. Effects of sewage and of a headwaters impoundment on the fishes of Stillwater Creek in Payne County, Oklahoma. Amer. Midl. Nat., 43 (1):128-145, 1 fig. 1954a. Fishes of Cedar Creek and the south fork of the Cottonwood River, Chase County, Kansas. Trans. Kansas Acad. Sci. 57:303-314. 1954b. Records of fishes little-known from Kansas. Trans. Kansas Acad. Sci. 57:473-479. CROSS, F. B., and MOORE, G. A. 1952. The fishes of the Poteau River, Oklahoma and Arkansas. American Midl. Nat., 47 (2):396-412. DOZE, J. B. 1924. Stream pollution. Bien. Report. Kansas Fish and Game Dept. 5:1-42. ELKIN, R. E. 1954. The fish population of two cut-off pools in Salt Creek, Osage County, Oklahoma. Proc. Oklahoma Acad. Sci., 35:25-29. ELLIOTT, A. 1947. A preliminary survey and ecological study of the fishes of the South Ninnescah and Spring Creek. Unpublished thesis, Kansas State College. EVERMANN, B. W., and FORDICE, M. W. 1886. List of fishes collected in Harvey and Cowley counties, Kansas. Bull. Washburn Lab. Nat. Hist., 1:184-186. FLORA, S. D. 1948. Climate of Kansas. Rept. Kansas State Board Agric. 67:xii-320, Illus. FOLEY, F. C., SMRHA, R. V., and METZLER, D. F.