11. A new species of pocket gopher (Genus Pappogeomys) from Jalisco, Mexico. By Robert J. Russell. Pp. 357-361. January 21, 1957. More numbers will appear in volume 9. Vol 10. 1. Studies of birds killed in nocturnal migration. By Harrison B. Tordoff and Robert M. Mengel. Pp. 1-44, 6 figures in text, 2 tables. September 12, 1956. 2. Comparative breeding behavior of Ammospiza caudacuta and A. maritima. By Glen E. Woolfenden. Pp. 45-75, 6 plates, 1. figure. December 20, 1956. 3. The forest habitat of the University of Kansas Natural History Reservation. By Henry S. Fitch and Ronald R. McGregor. Pp. 77-127, 2 plates, 7 figures in text, 4 tables. December 31, 1956. 4. Aspects of reproduction and development in the prairie vole (Microtus ochrogaster). By Henry S. Fitch. Pp. 129-161, 8 figures in text, 4 tables. December 19, 1957. 5. Birds found on the Arctic Slope of northern Alaska. By James W. Bee. 163-211, 2 pls., 1 figure in text. March 12, 1958. More numbers will appear in volume 10. * * * * * * Transcriber's Notes This file was derived from scanned images. With the exception of some minor corrections (for example missing commas or periods) which mary have been made that are not noted here and the list of typographical errors that were corrected below, the original text is presented. Some text may have been moved to rejoin paragraphs split in the original by Tables or images. Emphasis Notation _Text_ = Italic +Text+ = Bold-Italic Typographical Errors Corrected: Several minor typographical corrections were made (missing periods, commas, incomplete italicization, etc.); but are not indicated here. More substantial changes are listed below: Page 172 Para. 5: Koalak => Kaolak Page 173 Para. 3: gutteral => guttural Page 182 Para. 2: logopus => lagopus Page 184 Para. 4: was => were Page 186 Para. 3: Topagurak => Topagaruk Page 192 Para. 1: averages => averaged Page 195 Para. 4: few => flew Page 197 Para. 4: 70" => 74 deg. Page 197 Para. 5: (93-87) => (87-93) Page 210 Para. 4: then => than * * * * * *