Books by Carl Hartley:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Hartley, Carl (Carl Pierce), 1887-: The blights of coniferous nursery stock (U.S. Dept. of Agriculture, 1913) (page images at HathiTrust)- Hartley, Carl (Carl Pierce), 1887-: The control of damping-off of coniferous seedlings (U.S. Dept. of Agriculture, 1917), also by Roy G. Pierce (page images at HathiTrust)
- Hartley, Carl (Carl Pierce), 1887-: Damping-off in forest nurseries (U.S. Dept. of Agriculture, 1921) (page images at HathiTrust)
- Hartley, Carl (Carl Pierce), 1887-: Injury by disinfectants to seeds and roots in sandy soils (U.S. Dept. of Agriculture, 1915) (page images at HathiTrust)
- Hartley, Carl (Carl Pierce), 1887-: Protection against forest insects and diseases in the United States (U.S. Dept. of Agriculture, Forest Service, 1947), also by United States Forest Service, L. W. Orr, and Stephen N. Wyckoff (page images at HathiTrust)
Find more by Carl Hartley at your library, or elsewhere.