Name
- Adams, Charles Christopher, of the University of Chicago1
- Agassiz, Alexander, American zoologist1
- Aksakov, Alexander Nicolaevich, of St. Petersburg1
- Aldis, James Arthur, writer on spiritualism; of Dunwich, fl 1908-19201
- Allman, George James, naturalist, 1812-18981
- Alston, Edward Richard, F Z S1
- American Philosophical Society1
- Anderson, David, of Edinburgh1
- Ansted, David Thomas, geologist1
- Armstrong, Henry Edward, FRS, chemist1
- Arym, C., of Chicago, Ill1
- Atkinson, Edward D., of Penguin, Tasmania2
- Austin, Thomas, of Hitchin1
- Babington, Charles Cardale, Professor of Botany, Cambridge University, 1808-18951
- Baldwin, James Mark, philosopher and psychologist, 1861-19341
- Balfour, Henry, anthropologist; Curator of Pitt Rivers Museum, 1863-19391
- Balfour, Isaac Bayley, Knight, Professor of Botany, 1853-19222
- Ball, Francis L., of Birmingham; correspondent of Alfred Russel Wallace, fl 19121
- Ball, Robert Stawell, Knight, astronomer, 1840-19132
- Barbey, William, Swiss botanist and politician, 1842-19141