. Bulletin. Forests and forestry -- United States. A B tP-. Tangential Sections of Pinus echinata, heterophylla, and glabra, showing Number and Distribution of Pith Rays and Proportion of Pith-ray Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Division of Forestry. Washington : G. P. O.

---

Size: 1361px × 1835px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookpublisherwashingtongpo, booksubjectforestsandforestryunited