Books by Thomas Howell:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Howell, Thomas, 1842-1912: A catalogue of the known plants, (Phænogamia and Pteridophyta) of Oregon, Washington, and Idaho ([Arthur, Ore.], 1887) (page images at HathiTrust)- Howell, Thomas, 1842-1912: A flòra of northwest America, containing brief descriptions of all the known indigenous and naturalized plants growing without cultivation north of California, west of Utah, and south of British Columbia. By Thomas Howell. Vol. I. Phanerogamæ ... (Portland, Or., 1903) (page images at HathiTrust)
- Howell, Thomas, 1842-1912: A flora of northwest America containing brief descriptions of all the known indigenous and naturalized plants growing without cultivation north of California, west of Utah, and south of British Columbia ([s.n.], 1903) (page images at HathiTrust)
- Howell, Thomas, 1842-1912: Phanerogamæ. ([s.n.], 1897) (page images at HathiTrust)
- Howell, Thomas, 1842-1912: Public values of the Mount Hood area. (U. S. Govt. print. off., 1930), also by United States. Department of agriculture. Committee on study of Mount Hood area, Frederick Law Olmsted, Charles Linza McNary, and United States Forest Service (page images at HathiTrust)
Find more by Thomas Howell at your library, or elsewhere.