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. *1. The avifauna of Micronesia, its origin, evolution, and
distribution. By Rollin H. Baker. Pp. 1-359, 18 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, 13 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 Arizo