By De la Rue's advice, Pritchard began his career there with a determination of the physical libration of the moon, or the nutation of its axis.
In 1882 Pritchard commenced a systematic study of stellar photometry.
Pritchard became a fellow of New College, Oxford, in 1883, and an honorary fellow of St John's College, Cambridge, in 1886.
The chief business streets, such as Commissioner Street, Market Street, President Street and Pritchard Street, run east and west.
C. Williamson (best known as a botanist) in Pritchard's Infusoria, in 1861.