1. Manual of the botany of the northern United States Author(s): Gray, Asa, 1810-1888 Publication: New York : Ivison & Phinney, 1859 Subject(s): PlantsUnited States
2. Circular. No. 3 Author(s): United States. Surgeon-General's Office, author. Publication: [Washington, D.C.?] : [publisher not identified], [1869?] Subject(s): PlantsPlants, MedicinalMuseumsUnited StatesUnited States. ArmyUnited States. Department of Agriculture