Systematics of Laccaria (Agaricales) in the continental United States and Canada, with discussions on extralimital taxa and descriptions of extant types / Gregory M. Mueller.

n.s. no.30(1992)

Late Devonian fresh-water fishes from the western United States / Robert H. Denison --

v.11:no.5(1951)

American spiders and their spinningwork. A natural history of the orbweaving spiders of the United States, with special regard to their industry and habits. By Henry C. McCook.

v.1 1889

Phosphatic microfossils from the Ordovician of the United States / Matthew H. Nitecki --, Raymond C. Gutschick --, John E. Repetski --.

v.35:no.1(1975)

Some mites of Yemen collected by the Medical Mission of the United States Naval Medical Research Unit No.3. / Charles D. Radford.

v.34:no.28(1954)

Snakes of the genus Tantilla in the United States, by Frank N. Blanchard.

v.20:no.28(1938)

Two new genera of feather-wing beetles from the Eastern United States (Coleoptera: Pitliidae)

v.44:no.2(1961)

Natural landscapes of the United States / by J. Francis Macbride, Curator of Peruvian Botany.

no.27(1950)

The distributions of the native land mollusks of the Eastern United States / Leslie Hubricht.

n.s. no.24(1985)

American medical botany :being a collection of the native medicinal plants of the United States, containing their botanical history and chemical analysis, and properties and uses in medicine, diet and the arts /by Jacob Bigelow.

v. 1

American medical botany :being a collection of the native medicinal plants of the United States, containing their botanical history and chemical analysis, and properties and uses in medicine, diet and the arts /by Jacob Bigelow.

v. 2

American medical botany :being a collection of the native medicinal plants of the United States, containing their botanical history and chemical analysis, and properties and uses in medicine, diet and the arts /by Jacob Bigelow.

v. 3

Vegetable materia medica of the United States, or, Medical botany :containing a botanical, general, and medical history of medicinal plants indigenous to the United States. Illustrated by coloured engravings, made after drawings from nature, done by the author /by William P.C. Barton.

v. 1