During his last years, Harvey was Local Secretary at Plymouth for the Society for the Diffusion of Useful Knowledge. In 1834 The Literary Gazette reported his death at Plymouth, "where he fell by his own hand while under the influence of a melancholy deprivation of reason." The notice remarks that he was among the ablest mathematicians of our age and country, and of a noble disposition, intensely awake to the sufferings of his fellow human beings. The writer suspects this acute sensibility lay behind the overwrought condition which led to the tragedy. He was an intimate friend of the Devon poet Nicholas Toms Carrington and of the Cornish engineer and author Davies Gilbert.[7]
Harvey also wrote on "Naval Architecture" for the Metropolitana.[14] He wrote for the Edinburgh Encyclopædia on Plymouth and naval topics;[15] the article "Ship-building"[16] earned Harvey a diamond ring from the Tsar of Russia, presented by Prince Lieven.[17] At the 1832 meeting of the British Association, Harvey stated that British naval design was falling behind in mathematical theory, whatever the advantages brought by Robert Seppings in internal design.[18]
A paper by Harvey on colour blindness from 1824.On an Anomalous Case of Vision with regard to Colours, has been regarded as pioneering, for its use of a table of Patrick Syme.[22] The table was from Syme's 1814 edition of the Nomenclature of Colours by Abraham Gottlob Werner;[23] its use moved studies of the condition on from the case history to the standardised test.[22]
^William Peterfield Trent, English Culture in Virginia; a study of the Gilmer letters and an account of the English professors obtained by Jefferson for the University of Virginia (1889), p. 99; archive.org.
^Royal Society of Edinburgh; Wernerian Natural History Society (1822). The Edinburgh Philosophical Journal. A. Constable. p. 292. Retrieved 29 April 2012.
^Annals of philosophy. Baldwin, Craddock, and Joy. 1817. p. 445. Retrieved 29 April 2012.