The American physician, being a new system of practice, founded on botany ... for the use of families & practitioners by David Rogers
A medicinal dictionary including physic, surgery, anatomy, chymistry, & botany, in all their branches relative to medicine. Together with a history of drugs; ... With copper plates by Robert James
The Botanist
Experiments upon vegetables, discovering their great power of purifying the common air in the sun-shine, & of injuring it in the shade & at night. To which is joined, a new method of examining the accurate degree of salubrity of the atmosphere by Jan Ingenhousz
Foreign Medical Review: containing an account, with extracts, of all the new books published on natural history, botany, materia medica, chemistry... in every part of the Continent of Europe. Together with intelligence of new... discoveries
Miscellaneous observations in the practise of physick, anatomy & surgery. With new & curious remarks in botany ... Communicated in several letters to eminent physicians & learned members of the Royal Society ... To which is prefix'd a letter to the late Dr. Baynard, with new experiments, & considerable improvements in the use of the cold bath by Patrick Blair
Tracts on the nature of animals & vegetables by Lazzaro Spallanzani
Dissertations relative to the natural history of animals & vegetables by Lazzaro Spallanzani
Medical & botanical tracts. I. Virtues of British herbs, ... II. Virtues of polypody, ... III. Virtues of sage. IV. Vitures of valerian, ... V. Virtues of centaury, ... VI. Management of the gout. VII. Old man’s guide to health. First published separately at different times by John Hill
Some observations relative to the influence of climate on vegetable & animal bodies by Alexander Wilson
Observations on the structure & economy of plants: to which is added the analogy between the animal & the vegetable Kingdom by Robert Hooper
From 1771-74 he served as surgeon of a marine shore hospital, and then from 1774-75 was physician and surgeon at the Boston Alms House. Jeffries was offered the position as head of medical services for the colonial armies when the Revolution began, but declined the post.
Loyalist Jeffries and his family left Boston with the British troops on 17 March 1776, bound for Halifax. That May he was named chief of the military surgical staff in Nova Scotia, and in 1779 was confirmed as "Apothecary for the Forces at Nova Scotia, Surgeon to the General Hospital at New-York, and Surgeon Major of the Forces in America." It was not until February, 1780, however, that Jeffries returned to America, joining the British army in the southern theater.
In July he went to New York, where he quickly sold his commission so that he might return to his children in London (his wife having died there during his absence). Beginning a general medical practice in London, Jeffries did very well for himself, and soon began focusing on pediatrics and obstetrics. He was interested in scientific pursuits, and on 30 November 1784 financed a balloon flight with Jean Pierre Blanchard in Hyde Park, London. On 7 January 1785, Jeffries and Blanchard went further, crossing the English Channel from Dover and landing in France. The two were taken to Paris, where they were wined and dined (Jeffries even met with John Adams and Benjamin Franklin, to whom he delivered the first recorded air mail (having brought letters on the balloon).
Jeffries returned to Dover on 27 February, and wrote up an account of his aerial voyages (later published). To settle certain family business, Jeffries returned to Boston in November 1789, where he was warmly greeted by his old friends (including John Adams, Elbridge Gerry, and others). Jeffries determined soon after to stay in Boston, and began a medical practice in April 1790. From then until his death, it is said that he delivered some 2,000 babies in Boston. Jeffries died in 1819 of an "inflammation in his bowels."
His diaries are at Houghton Library, Harvard, and some other of his papers are in the Jeffries Family Papers at the Massachusetts Historical Society. Jeffries' library of medical books is documented in a catalog titled "Library of John Jeffries left to his heirs 1820," now in Harvard's Countway Medical Library.
