The North American bees of the genus Osmia (Hymenoptera: Apoidea) /

Descriptive letterpress on versos of plates.

Observations on the genus Unio, together with descriptions of new genera and species ...

Vol. II is bound with vol. XII; vol. III with vol. XIII.

The genus Ixodes in North America /

Includes index.

Monography of the genus Camellia or, An essay on its culture, description and classification, illustrated by two synoptical tables... /

Includes index.

A monograph of the genus Poecilanthrax (Diptera: Bombyliidae)

Cover title.

Kamptzia, novum arborum Myrtacearum genus. (Programma gratulatorium).

Pritzel (2nd ed.)

The birational transformations of algebraic curves of genus four.

Thesis (Ph.D.)--Cornell University, 1908.

Antonii Mizaldi Monsluciani Meteorologia siue perspicua declaratio rerum quae in aëre fiunt, id est, pluuiae, grandinis, tonitrui & id genus aliorum causas ...

Mode of access: Internet.

A treatise on the Diatomaceae, containing introductory remarks on the structure, life history, collection, cultivation and preparation of diatoms, and a description and figure typical of every known genus, as well as a description and figure of every species found in the North Sea and countries bordering it, including Great Britain, Belgium, &c.

Reprint of the 1896 ed.

Review of the species of New World Erythroneurini (Hemiptera; Cicadellidae: Typhlocybinae) : II. Genus Zyginama /

"Editor: Charles Warwick"--p. [2] of cover.

The botanical history of the genus Ehrharta.

Transactions of the Linnean society, 1802, vi, 40-64.

On two American species of the genus Hydrachna.

Mode of access: Internet.

On a new genus of palaeozoic shells.

Mode of access: Internet.

On Diopsis, a genus of dipterous insects : with descriptions of twenty-one species /

Includes bibliographical references.

On Nycteribia, a genus of wingless insects.

Mode of access: Internet.