The threshold of the unknown region
By: by Clements R. Markham.
Edition: 4th ed., with supplementary chapters.
Series: CIHM/ICMH Microfiche series -- no. 29975
Publisher: S. Low, Marston, Searle & Rivington
Published: 1982
Place of publication: London
Language: eng
Format: Microform
Number of pages: 584
Subjects: Arctic regions.
Notes: Includes index.

Filmed from a copy of the original publication held by the Library of the Public Archives of Canada. Ottawa : Canadian Institute for Historical Microreproductions, 1982.