The Douglas firs
Subtitle: a botanical and silvicultural description of the various species of Pseudotsuga
By: Augustine Henry and Margaret G. Flood
Series: Proceedings of the Royal Irish Academy -- v. 35, section B, no. 5
Publisher: Hodges, Figgis
Published: 1920
Place of publication: Dublin
Language: eng
Number of pages: 92
Notes: Cover title.

Includes bibliographical references.