Zoologist. Assistant-surgeon on HMS Rattlesnake, 1846–50, during which time he investigated Hydrozoa and other marine invertebrates. Lecturer in natural history, Royal School of Mines, 1854; professor, 1857. Appointed naturalist to the Geological Survey of Great Britain, 1854. Hunterian Professor, Royal College of Surgeons of England, 1862–9. Fullerian Professor of physiology, Royal Institution of Great Britain, 1855–8, 1866–9. President of the Royal Society of London, 1883–5. FRS 1851.
Sources: R. W. Clark 1968A. Desmond 1994–7DSBODNB. (See the bibliography for full references to sources)