1794 and 1795, was present in the battle of 1 June 1794, appears to have been with Cornwallis on 16–17 June 1795, and to have joined the fleet under Lord Bridport very shortly after the action of 23 June. When going on board one of the ships to visit a wounded officer, he was accidentally ruptured, and rendered incapable of further service at sea. Trotter was granted a pension; he settled in private practice at Newcastle, which he gave up, but continued to write, mostly on professional subjects. He died at Newcastle on 5 September 1832. He was twice married. Publications At the age of 16 Trotter wrote verses which were published in Walter Ruddiman's Edinburgh Magazine in 1777 and 1778. His M.D. dissertation was De Ebrietate ejusque effectibus in corpus humanum, published in English as An Essay, medical, philosophical, and chemical, on Drunkenness, and its Effects on the Human Body (1804; 4th edit. 1812). In England, while in private medical practice at Wooler in Northumberland, he wrote up his notes on scurvy to order, and published them as Observations on the Scurvy (1786; 2nd edit., much enlarged, 1792). Treatment for scurvy had been demonstrated by James Lind in his Treatise of 1754; Trotter corroborated Lind's thesis by extensive observations. In 1795, through Sir Gilbert Blane, the Admiralty endorsed the general use of lemon juice. Other works were: A Review of the Medical Department in the British Navy, with a Method of Reform proposed, 1790. Medical and Chemical Essays, containing additional Observations on Scurvy ... 1795; 2nd edit. 1796. Medicina Nautica: an Essay on the Diseases of Seamen, vol. i. 1797; vol. ii. 1799; vol. iii. 1803. Suspiria Oceani: a Monody on the death of Richard, Earl Howe, 1800. An essay, medical, philosophical, and chemical, on drunkenness, and its effects on the human body, 1804. A Proposal for destroying the Fire and Choak Damps of Coal Mines ... 1805. This work brought two controversial replies, from Henry Dewar and "A Friend to Rational Schemes of Improvement". A Second Address to the Owners and Agents of Coal Mines on destroying the Fire and Choak Damp, 1806. A View of the Nervous Temperament; being a Practical Treatise on Nervous, Bilious, Stomach, and Liver Complaints 1807; 2nd edit. 1808. The Noble Foundling, or the Hermit of the Tweed: a Tragedy, 1812. A practicable Plan for Manning the Royal Navy ... without Impressment. Addressed