120 MISCELLANEOUS PUBLICATION NO. 725, U.S. DEPARTMENT OF AGRICULTURE 
Spaulding, Perley. 1820 
1919. Scientific research and field investigations in 1918, 
Investigations in the United States Department of 
Agriculture, Report on White Pine Blister Rust 
Control, 1918, Amer, Plant Pest Comm, Bul, 2: 
1 Bes ik 
Spaulding, Perley. 1822 
1920, Scientific research in 1919 conducted by the Office of 
Investigations in Forest Pathology. Amer. Plant 
Pest Committee, Report on White Pine Blister 
Rust Control Bul, (1939) 4: 10-11. 
Spaulding, Perley. 1823 
1922, Investigations of the white-pine blister rust. U. S. 
Dept. Agr. Bul, 957,,100 pp. illus, 
Spaulding, Perley. 1824 
1922, Notes on Cronartium ribicola, (Abstract) Phytopath- 
ology 12: 46, 
Spaulding, Perley. 1825 
1922, Viability of telia of Cronartium ribicola in early 
winter, Phytopathology 12: 221-224, 
Spaulding, Perley. 1826 
1923, The biology of Pinus strobus, (Abstract) Wash, Acad, 
Sci, Jour’ (l3: 25. 
Spaulding, Perley. 1827 
1923. Foreign studies of white pine blister rust, (Abstract) 
Phytopathology 13: 45, — 
Spaulding, Perley. 1828 
1923, Notes on some tree diseases in Europe, (Abstract) 
Wash, Acad, Sci, Jour, 13: 451. 
Spaulding, Perley. 1829 
1923, Plant disease survey of England and Wales. Phyto- 
pathology 13: 410. 
[Spaulding, Perley. | 1830 
1923, Doctor Spaulding says blister rust is dangerous in 
Europe. U. S. Dept. Agr. , Off. Reess2pany o5- 
Spaulding, Perley. 1831 
1925, Longevity of blister rust teliospores and sporidia, 
Blister Rust Control Ann, Conf, Proc, 10: 72-73, 
[Processed, ] 
Spaulding, Perley. 1832 
1925, Notes on other matters pertaining to the Office of 
Forest Pathology, Blister Rust Control Ann, Conf, 
Prac. 10: 74-76. [Processed, ] 
Spaulding, Perley. 1833 
1925, <A partial explanation of the relative susceptibility of 
the white pines to the white pine blister rust 
(Cronartium ribicola Fischer), Phytopathology 15: 
591-597, 
Spaulding, Perley. 1834 
1925, References to literature on slash disposal as they 
bear upon northeastern conditions, with brief ab- 
stracts, U. S. Forest Serv. 16 pp. [Processed, ] 
Revised 1931, 
Spaulding, Perley. 1835 
1925, The white pine blister rust in Vermont, U. S. Bur. 
Plant Indus,, Blister Rust News 9 (5): 3-4. 
[Processed, ] 
