Thomas Percival

Thomas Percival (29 September 1740 – 30 August 1804) was an English physician, health reformer, ethicist and author who wrote an early code of medical ethics. He drew up a pamphlet with the code in 1794 and wrote an expanded version in 1803, Medical Ethics; or, a Code of Institutes and Precepts, Adapted to the Professional Conduct of Physicians and Surgeons in which he coined the expression "medical ethics". He was a founding subscriber of the Portico Library in Manchester and a pioneering campaigner for public health measures and factory regulation in the city.

Background He was born in Warrington, Lancashire, on 29 September 1740, the son of Joseph Percival and his wife, Margaret Orred.

He became a fellow to the Royal Society in the same year,

After working as a physician in Warrington from 1765, Percival took a similar post in Manchester from 1767. He was elected to the American Philosophical Society in 1786 and to the Royal Society of Edinburgh

Percival's Medical Ethics served as a key source for the American Medical Association (AMA) code, adopted in 1847. Though hyperbolic in its recognition of Percival, the AMA itself states:

The most significant contribution to Western medical ethical history subsequent to Hippocrates was made by Thomas Percival, an English physician, philosopher, and writer. In 1803, he published his Code of Medical Ethics. His personality, his interest in sociological matters, and his close association with the Manchester Infirmary led to the preparation of a scheme of professional conduct relative to hospitals and other charities from which he drafted the code that bears his name.

As one expert writes, "The Percivalian code asserted the moral authority and independence of physicians in service to others, affirmed the profession's responsibility to care for the sick, and emphasized individual honor." Percival was a devout Christian.

Family Percival was married to Elizabeth Basnett.

Selected works Essays medical and experimental: on the following subjects, viz. I. The empiric. II. The dogmatic. Or, arguments for and against the use of theory and reasoning in physick. III. Experiments and observations on astringents and bitters IV. On the uses and operation of blisters. V. On the resemblance between chyle and milk. London: for Joseph Johnson and B. Davenport, 1767 (followed by later editions) Essays medical and experimental [Vol. II]: on the following subjects: 1. On the Columbo root. 2. On the orchis root. 3. On the waters of Buxton and Matlock ... 4. On the medicinal uses of fixed air. 5. On the antiseptic and sweetening powers ... of factitious air. 6. On the noxious vapours of charcoal. 7. On the atrabilis. 8. On sea salt. 9. On coffee. To which are added, select histories of diseases ... London: for Joseph Johnson, 1773 Essays, medical philosophical and experimental; By Thomas Percival, M.D. F.R.S. and A.S. Lond. F.R.S. and R.M.S. Edinb. Member of the Royal Society of Medicine at Paris; of the Royal Society of Agriculture at Lyons; and of the American Philosophy Soc. at Philadelphia, &c. &c. The fourth edition, revised and enlarged. 2 vols. Warrington: printed by W. Eyres, for J. Johnson, London, 1788–89 Medical ethics; or a Code of institutes and precepts, adapted to the professional interests of physicians and surgeons. Manchester: S. Russell, 1803 (followed by later editions)