Bulletin of the Museum of Comparative Zoology at Harvard College.

v.151 (1985-1988)

Bulletin of the Museum of Comparative Zoology at Harvard College.

v.115 (1956-1957)

Bulletin of the Museum of Comparative Zoology at Harvard College.

v.120 (1959)

Bulletin of the Museum of Comparative Zoology at Harvard College.

v.152 (1989-1992)

Bulletin of the Museum of Comparative Zoology at Harvard College.

v.133 (1965-1966)

Bulletin of the Museum of Comparative Zoology at Harvard College.

v.137 (1968-1969)

Bulletin of the Museum of Comparative Zoology at Harvard College.

v.91 (1942)

Annual report of the Pennsylvania Department of Agriculture ...

9

Annual report of the Trustees of the State Museum of Natural History ...

39th (1885)

Annual report of the Pennsylvania Department of Agriculture ...

7, pt. 2

Annual report of the Pennsylvania Department of Agriculture ...

6, pt. 2

Annual report of the Pennsylvania Department of Agriculture ...

7, pt. 1

Annual report of the Pennsylvania Department of Agriculture ...

13

Annual report of the Pennsylvania Department of Agriculture ...

8, pt. 1

Annual report of the Pennsylvania Department of Agriculture ...

17