Name
- Baillon, Henri Ernest, botanist, physician, 1827-18951
- Baily, William Hellier, palaeontologist; of the British Geological Survey, 1819-18881
- Baker, Benjamin, Knight, civil engineer, 1840-19071
- Baker, John Gilbert, botanist, of Kew Gardens, 1834-19201
- Baker, Samuel White, Knight, explorer, 1821-18931
- Balagué, J., of Paris; correspondent of T. R. Jones, fl 18741
- Balard, Antoine Jérôme, chemist, 1802-18761
- Balfour, Isaac Bayley, Knight, Professor of Botany, 1853-19221
- Balfour, John Hutton, Professor of Botany at Edinburgh University, 1808-18841
- Ball, Valentine, geologist, 1843-18951
- Ball, William Platt, author, 1844-19171
- Banks, Joseph, 1st Baronet, botanist, naturalist and patron of science, 1743-18201
- Barber, Samuel, clergyman; Fellow of the Meteorological Society, fl late 19th century1
- Barclay, Arthur, correspondent of G. R. M. Murray, fl 18911
- Barkas, Thomas Pallister, of Newcastle-upon-Tyne; correspondent of Spencer George Perceval, fl 18731
- Barrande, Joachim, geologist and palaeontologist, 1799-18831
- Barrois, Charles Eugène, French geologist and palaeontologist, 1851-19391
- Barrow, George, geologist, 1853-19321
- Bartlett, George, Vice-President, Devon and Cornwall Natural History Society, fl 18501
- Barwell, Richard, surgeon, 1826-19161