Cornell University Library Digital Collections
- Coulter, John Merle, 1851-1928.2
- Hayes, Herbert Kendall, 1884-2
- Jones, Donald Forsha, 1890-2
- Bailey, L. H. 1858-1954.1
- Harwood, William Sumner, 1857-1908.1
- Newman, L. H. 1
- Ukraine. Sortovodno-semennoe upravlenie sakharotresta.1
- Vries, Hugo de, 1848-1935.1
