Nos. 1-26 and index. Pp. 1-638, 1946-1950.

(Complete) Mammals of Washington. By Walter W. Dalquest. Pp. 1-444, 140 figures in text. April 9, 1948.

Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia) — Part 60

(Complete) American weasels. By E. Raymond Hall. Pp. 1-466, 41 plates, 31 figures in text. December 27, 1951.

Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia) — Part 60

Nos. 1-37 and index. Pp. 1-676, 1951-1953.

Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia) — Part 60

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

Nos. 1-15 and index. Pp. 1-651, 1952-1955.

Nos. 1-10 and index. Pp. 1-675, 1954-1956.

Nos. 1-23 and index. Pp. 1-690, 1955-1960.

Nos. 1-10 and index. Pp. 1-626, 1956-1960.

Nos. 1-10 and index. Pp. 1-703, 1958-1960.

*1. Functional morphology of three bats: Eumops, Myotis, Macrotus. By Terry A. Vaughan. Pp. 1-153, 4 plates, 24 figures in text. July 8, 1959.

*2. The ancestry of modern Amphibia: a review of the evidence. By Theodore H. Eaton, Jr. Pp. 155-180, 10 figures in text. July 10, 1959.

3. The baculum in microtine rodents. By Sydney Anderson. Pp. 181-216, 49 figures in text. February 19, 1960.

*4. A new order of fishlike Amphibia from the Pennsylvanian of Kansas. By Theodore H. Eaton, Jr., and Peggy Lou Stewart. Pp. 217-240, 12 figures in text. May 2, 1960.

5. Natural history of the Bell Vireo. By Jon C. Barlow. Pp. 241-296, 6 figures in text. March 7, 1962.

6. Two new pelycosaurs from the lower Permian of Oklahoma. By Richard C. Fox. Pp. 297-307, 6 figures in text. May 21, 1962.

7. Vertebrates from the barrier island of Tamaulipas, México. By Robert K. Selander, Richard F. Johnston, B. J. Wilks, and Gerald G. Raun. Pp. 309-345, plates 5-8. June 18, 1962.

8. Teeth of edestid sharks. By Theodore H. Eaton, Jr. Pp. 347-362, 10 figures in text. October 1, 1962.

9. Variation in the muscles and nerves of the leg in two genera of grouse (Tympanuchus and Pedioecetes). By E. Bruce Holmes. Pp. 363-474, 20 figures. October 25, 1962. $1.00.

10. A new genus of Pennsylvanian fish (Crossopterygii, Coelacanthiformes) from Kansas. By Joan Echols. Pp. 475-501, 7 figures. October 25, 1963.

11. Observations on the Mississippi Kite in southwestern Kansas. By Henry S. Fitch. Pp. 503-519. October 25, 1963.

12. Jaw musculature of the Mourning and White-winged doves. By Robert L. Merz. Pp. 521-551, 22 figures. October 25, 1963.