1961. A nesting colony of black terns in Kansas. Bull. Kansas Ornith. Soc., 12:25-27. PAYNTER, R. A., JR. 1954. Interrelations between clutch-size, brood-size, prefledging survival and weight in Kent Island tree swallows, I. Bird-Banding, 25:35-58. SCHMIDT-KOENIG, K. 1960. The sun azimuth compass: one factor in the orientation of homing pigeons. Science, 131:826-828. SNOW, D. W. 1955. The breeding of blackbird, song thrush, and mistle thrush in Great Britain. I. Clutch-size. Bird Study, 2:72-84. TORDOFF, H. B. 1956. Check-list of the birds of Kansas. Univ. Kansas Publ. Mus. Nat. Hist, 8:307-359. UDVARDY, M. D. F. 1958. Ecological and distributional analysis of North American birds. Condor, 60:50-66. WELTER, W. A. 1935. The natural history of the long-billed marsh wren. Wilson Bull., 97:1-34. WIENER, N. 1958. Nonlinear problems in random theory. (Technology Press, Cambridge, England.) WILLIAMSON, F. S. L. 1956. The molt and testis cycle of the Anna hummingbird. Condor, 58:342-366. WOLFE, L. R. 1961. The breeding birds of Decatur County, Kansas: 1908-1915. Bull. Kansas Ornith. Soc., 12:27-30. ZUVANICH, J. R. 1963. Forster terns breeding in Kansas. Bull. Kansas Ornith. Soc., 14:1-3. _Transmitted November 21, 1963._ [Illustration: FIG. 10.--Map of Kansas showing names of counties.] UNIVERSITY OF KANSAS PUBLICATIONS MUSEUM OF NATURAL HISTORY Institutional libraries interested in publications exchange may obtain this series by addressing the Exchange Librarian, University of Kansas Library, Lawrence, Kansas. Copies for individuals, persons working in a particular field of study, may be obtained by addressing instead the Museum of Natural History, University of Kansas, Lawrence, Kansas. There is no provision for sale of this series by the University Library, which meets institutional requests, or by the Museum of Natural History, which meets the requests of individuals. Nevertheless, when individuals request copies from the Museum, 25 cents should be included, for each separate number that is 100 pages or more in length, for the purpose of defraying the costs of wrapping and mailing. * An asterisk designates those numbers of which the Museum's supply (not the Library's supply) is exhausted. Numbers published to date, in this series, are as follows: Vol. 1. Nos. 1-26 and index. Pp. 1-638, 1946-1950. *Vol. 2. (Complete) Mammals of Washington. By Walter W. Dalquest. Pp. 1-444, 140 figures in text. April 9, 1948. Vol. 3. Nos. 1-4 and index. Pp. 1-681. 1951. *Vol. 4. (Complete) American weasels. By E. Raymond Hall. Pp. 1-466, 41 plates, 31 figures in text. December 27, 1951. Vol. 5. Nos. 1-37 and index. Pp. 1-676, 1951-1953.