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Subjects
- Dalton, John Call, 1825-1889.1
- Dana, Anderson G. (Anderson Green), 1791-1861.1
- Darwin, Charles, 1809-1882.2
- Darwin, Erasmus, 1731-1802.1
- De Puy, Cornelius E. (Cornelius Eleazer), 1790-1822.1
- Deane, James, 1801-1858.1
- Deception1
- Delaware1
- Dentists2
- Dewees, William P. (William Potts), 1768-1841.1
- Dietary Sucrose1
- Digestion1
- District Medical Society for the County of Hunterdon.1
- District of Columbia2
- Donders, F. C. (Franciscus Cornelis), 1818-1889.1
- Dorsey, Frederick, 1774-1858.1
- Dover, Thomas, 1660-1742.1
- Drake, Daniel, 1785-1852.2
- Du Ponceau, Peter Stephen, 1760-1844.1
- Dudley, Benjamin W. (Benjamin Winslow), 1785-1870.1