Report on economic zoology for the year ...

Mode of access: Internet.

Reports on economic zoology.

Mode of access: Internet.

Report on Economic Zoology

Mode of access: Internet.

The Bi-monthly zoological bulletin of the Division of Zoology of the Pennsylvania Department of Agriculture.

Mode of access: Internet.

General bulletin.

No. 503 combined with 511, 517.

Useful knowledge: or, A familiar account of the various productions of nature, mineral, vegetable, and animal, which are chiefly employed for the use of man. Illustrated with numerous figures, and intended as a work both of instruction and reference.

v. 1. Minerals.--v. 2. Vegetables.--v. 3. Animals.

[Reports on economic entomology and zoology]

Mode of access: Internet.

An economic study of the food of the ring-necked pheasant in South Dakota /

Mimeographed.

Principles of economic zoölogy,

Mode of access: Internet.

A text-book of economic zoölogy,

Mode of access: Internet.

The Zoological bulletin of the Division of Zoology.

At head of title, v. 1-4: Pennsylvania State Department of Agriculture.