Annual report of the Board of Regents of the Smithsonian Institution

Tract C-b quarterly report. no.2

The Canadian field-naturalist

A text-book of zoogeography

Management techniques in riparian areas

Occasional Publication of the Irish Biogeographical Society

The Canadian field-naturalist

Introduction to plant geography and some related sciences

Smithsonian year : annual report of the Smithsonian Institution for the year ended Sept. 30 …

Proceedings of the California Academy of Sciences, 4th series