and serving as a corrective on it". Studying the natural world leads to a cultivation of good taste and religious understanding for Gregory. In what would become his most famous publication, Gregory wrote A Father's Legacy to his Daughters after the death of his wife in 1761 to honour her memory and record her thoughts on female education. Originally Gregory meant only to give the text to his daughters when he died, but his son James published it in 1774; it became a best-seller, going through many editions and translations. In writing this work, he may have been influenced by the celebrated Bluestocking Elizabeth Montagu. The text advises parents and women on religion, moral conduct, friendship and interactions with men, with a focus on marriage. He suggested that women refrain from exposing any learning that they might have, as this would damage their ability to attract a husband. Mary Wollstonecraft would later attack these principles in A Vindication of the Rights of Woman (1792), arguing that Gregory's advice amounted to nothing more than deceit on the part of women. Gregory moved to Edinburgh in 1764, where he established a medical practice. Two years later Gregory was appointed the first physician in Scotland to George III and made a member of the faculty of Edinburgh University. His appointment was not undisputed and one professor resigned because Gregory was selected rather than William Cullen. Between 1767 and 1769, Gregory gave a series of lectures on medicine and in 1769, he and Cullen gave joint sources on medical practice and medical theory. He published some of his lectures as Observations on the Duties and Offices of a Physician and on the Method of Prosecuting Enquiries in Philosophy (1770). These writings have been called "the first philosophical, secular medical ethics in the English language". Gregory also published Elements of the Practice of Physic (1772), which investigated the nosology of disease and the diseases of children. Gregory died in Edinburgh on 9 February 1773. He is buried in Canongate Churchyard but the plot bears only the name of his son, James, also a prominent doctor and Professor of Medicine. The latter was famed for creating "Gregory's Powder" and "Gregory's Mixture", both frequently used for stomach complaints until World War I. Elizabeth Montagu wrote of John: "The hours I passed in his company were amongst the most delightful in my life. He was instructive and amusing,