Books by Leonard H. Day:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Day, Leonard H., 1883-1969: Apple, quince, & pear rootstocks in California (College of Agriculture, University of California, 1947) (page images at HathiTrust)- Day, Leonard H., 1883-1969: Cherry rootstocks in California (California Agricultural Experiment Station, College of Agriculture, University of California, 1951) (page images at HathiTrust)
- Day, Leonard H., 1883-1969: Nematode-resistant rootstocks for deciduous fruit trees (University of California, College of Agriculture, Agricultural Experiment Station, 1944), also by Warren P. Tufts (page images at HathiTrust)
- Day, Leonard H., 1883-1969: Pear blight control in California (College of Agriculture, University of California, 1928) (page images at HathiTrust)
- Day, Leonard H., 1883-1969: The root-knot nematode (University of California, College of Agriculture, Agricultural Experiment Station, 1944), also by Jocelyn Tyler and W. W. Mackie (page images at HathiTrust)
- Day, Leonard H., 1883-1969: Rootstocks for stone fruits : observations and experiments with plum, peach, apricot and almond roots for stone fruits (California Agricultural Experiment Station, College of Agriculture, University of California, 1953) (page images at HathiTrust)
- Day, Leonard H., 1883-1969: Zinc chloride treatment for pear blight cankers (University of California, College of Agriculture, 1930) (page images at HathiTrust)
Find more by Leonard H. Day at your library, or elsewhere.