The aquatic birds of Great Britain and Ireland.

Mode of access: Internet.

[Reprints on aquatic hemiptera]

Made up set; supplied title.

Keys to the North American genera and higher groups of aquatic insects in their larval and adult stages,

Leaves variously numbered.

A tentative list of mallophaga for North American mammals (North of Mexico) /

With: A tentative list of mallophaga for North American birds (north of Mexico) / by K.C. Emerson.

Notes on Jerdon's Mammals of India

Dedication and preface signed: A.C. McMaster.

The mammals of India; a natural history of all the animals known to inhabit continental India.

Mode of access: Internet.

The role of aquatic vascular plants in the eutrophication of selected lakes in western Massachusetts

"A project supported under Section 100, Water resources research act of 1964 (p. L. 88-379."

Effects of chemical variations in aquatic environments.

Project 18050 DYC.

List of North American land mammals in the United States Nationa Museum, 1911;

Mode of access: Internet.

Mammals of Lake Tahoe;

Mode of access: Internet.

A bill to protect marine mammals; to establish a Marine Mammal Commission; and for other purposes,

Calendar no. 824.

Mammals imported into the United States in 1968 /

Mode of access: Internet.

Catalogue of the ungulate mammals in the British Museum (Natural History)

Mode of access: Internet.

The mammals of Michigan,

Mode of access: Internet.

May flies and midges of New York. Third report on aquatic insects. A study conducted at the Entomologic Field Station, Ithaca, N.Y. /

Bibliography: p. 310-315.