John Archer, the author of "Every Man his own Doctor," and "Secrets Disclosed," was an advocate of generous diet and enlightened sensuality. His place of business was "a chamber in a Sadler's howse over against the Black Horse nigh Charing-cross," where his hours of attendance for some years were from 11 A. M. to 5 P. M. each day. On setting up a house at Knightsbridge, where he resided in great style, he shortened the number of hours daily passed in London. In 1684 he announced in one of his works--"For these and other Directions you may send to the Author, at his chamber against the _Mews_ by Charing-cross, who is certainly there from twelve to four, at other times at his house at Knightsbridge, being a mile from Charing-cross, where is good air for cure of consumptions, melancholy, and other infirmities." He had also a business established in Winchester Street, near Gresham College, next door to the _Fleece Tavern_. Indeed, physician-in-ordinary to the King though he was, he did not think it beneath him to keep a number of apothecaries' shops, and, like Whitaker, to live by the sale of drugs as well as fees. His cordial dyet drink was advertised as costing 2_s._ 6_d._ per quart; for a box containing 30 morbus pills, the charge was 5_s._; 40 corroborating pills were to be had for the same sum. Like Dr. Everard, he recommended his patients to smoke, saying that "tobacco smoke purified the air from infectious malignancy by its fragrancy, sweetened the breath, strengthened the brain and memory, and revived the sight to admiration." He sold tobacco, of a superior quality to the ordinary article of commerce, at 2_s._ and 1_s._ an ounce. "The order of taking it is like other tobacco at any time; its virtues may be perceived by taking one pipe, after which you will spit more, and your mouth will be dryer than after common tobacco, which you may moisten by drinking any warm drink, as coffee, &c., or with sugar candy, liquorish, or a raisin, and you will find yourself much refreshed." Whilst Whitaker and Archer were advising men to smoke and drink, another physician of the Court was inventing a stomach-brush, in some respects much like the bottle-brush with which fly-poison ought to be taken from the interior of black bottles before wine is committed to them. This instrument was pushed down the gullet, and then poked about and turned round, much in the same way as a chimney-sweeper's brush is handled by a dexterous operator on soot. It was recommended that gentlemen should thus sweep out their insides not oftener than once a week, but not less frequently than once a month. The curious may find not only a detailed description but engraved likeness of this remarkable stomach-brush in the _Gentleman's Magazine_, vol. xx., for the year 1750.