On the tendency of species to form varieties
Subtitle: and on the perpetuation of varieties and species by natural means of selection
By: by Charles Darwin and Alfred Wallace ; communicated by Sir Charles Lyell and J.D. Hooker ; read July 1st, 1858.
Contributors: Darwin, Charles, 1809-1882.; Wallace, Alfred Russel, 1823-1913.
Publisher: Linnean Society of London
Published: 1858
Place of publication: [London
Language: eng
Number of pages: 62
Subjects: Variation (Biology); Evolution
Other titles: Messrs. C. Darwin and A. Wallace on the tendency of species to form varieties; Tendency to form varieties; On the tendency of varieties to depart indefinitely from the original type
Notes: Caption title.

Running title: Messrs. C. Darwin and A. Wallace on the tendency of species to form varieties.

Freeman 347.

Detached from: Journal of the Proceedings of the Linnean Society of London.  Zoology, v. 3, no. 9.

In box bearing title on spine: Tendency to form varieties.
Table of contents: value: 1.  Extract from an unpublished work on species / C. Darwin.; value: 2.  Abstract of a letter from C. Darwin, Esq., to Prof. Asa Gray.; value: 3. On the tendency of varieties to depart indefinitely from the original type / by A.R. Wallace.