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Authors
- A.B. & D. Sands (Firm)1
- Abbot, Abiel, 1770-18281
- Abbot, Joel, 1776-18261
- Abercrombie, John, 1780-18448
- Abernethy, John, 1764-18318
- Abreu, Francisco Ferreira de.1
- Academia farmacéutica de México author.1
- Academia médico-quirúrgica (Puebla de Zaragoza, Mexico).1
- Academy of Natural Sciences of Philadelphia, author.1
- Académie de médecine (France)2
- Accum, Friedrich Christian, 1769-18385
- Ackerley, G. (George)1
- Ackley, H. A. (Horace A.), 1815-18591
- Acton, William, 1813-18752
- Acuña, Jose Gregorio.1
- Adreon, Stephen W.2
- Agassiz, Louis, 1807-18732
- Agg, John, 1783-18551
- Agnew, James, -18401
- Aikin, Charles Rochemont, 1775-18472