n, evolution, and
distribution. By Rollin H. Baker. Pp. 1-359, 16 figures in text. June
12, 1951.

*2. A quantitative study of the nocturnal migration of birds. By George
H. Lowery, Jr. Pp. 361-472, 47 figures in text. June 29, 1951.

3. Phylogeny of the waxwings and allied birds. By M. Dale Arvey. Pp.
478-530, 49 figures in text, 18 tables. October 10, 1951.

4. Birds from the state of Veracruz, Mexico. By George H. Lowery, Jr.,
and Walter W. Dalquest. Pp. 531-649, 7 figures in text, 2 tables.
October 10, 1951.

Index. Pp. 651-681.

*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.

*Vol. 6. (Complete) Mammals of Utah, _taxonomy and distribution_. By
Stephen D. Durrant. Pp. 1-549, 91 figures in text, 30 tables. August 10,
1952.

Vol. 7. *1. Mammals of Kansas. By E. Lendell Cockrum. Pp. 1-303, 73
figures in text, 37 tables. August 25, 1952.

2. Ecology of the opossum on a natural area in northeastern Kansas. By
Henry S. Fitch and Lewis L. Sandidge. Pp. 305-338, 5 figures in text.
August 24, 1953.

3. The silky pocket mice (Perognathus flavus) of Mexico. By Rollin H.
Baker. Pp. 339-347, 1 figure in text. February 15, 1954.

4. North American jumping mice (Genus Zapus). By Philip H. Krutzsch. Pp.
349-472, 47 figures in text, 4 tables, April 21, 1954.

5. Mammals from Southeastern Alaska. By Rollin H. Baker and James S.
Findley. Pp. 473-477. April 21, 1954.

6. Distribution of Some Nebraskan Mammals. By J. Knox Jones, Jr. Pp.
479-487. April 21, 1954.

7. Subspeciation in the montane meadow mouse. Microtus montanus, in
Wyoming and Colorado. By Sydney Anderson. Pp. 489-506, 2 figures in
text. July 23, 1954.

8. A new subspecies of bat (Myotis velifer) from southeastern California
and Arizona. By Terry A. Vaughan. Pp. 507-512. July 28, 1954.

9. Mammals of the San Gabriel mountains of California. By Terry A.
Vaughan. Pp. 513-582, 1 figure in text, 12 tables. November 15, 1954.

10. A new bat (Genus Pipistrellus) from northeastern Mexico. By Rollin
H. Baker. Pp. 583-586. November 15, 1954.

11. A new subspecies of pocket mouse from Kansas. By E. Raymond Hall.
Pp. 587-590. November 15, 1954.

12. Geographic variation in the pocket gopher, Cratogeomys castanops, in
Coahuila, Mexico. By Robert J. Russell and Rollin H. Baker. Pp. 591-608.
March 15, 1955.

13. A new cottontail (Sylvilag