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Subjects: 1799-1865; 1800-1889; 1809-1865; 1809-1884; 1810-1888; 1813-1883; 1839-1922; Classification; Coniferae; Conifers; Correspondence; Engelmann, George,; Fendler, Augustus,; Gray Herbarium; Gray, Asa,; Harvard University; Herbarium; Identification; Lincoln, Abraham,; Lindley, John,; National Academy of Sciences (U.S.); Plants; Rocky Mountain States; Rocky Mountains; Rothrock, Joseph T.,; Shaw, Henry,; Smithsonian Institution</div>
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Gray, Asa,</div>
Internet Archive identifier