The Doctor observes, that "Jack by the hedge, or sauce alone, is an annual plant, which perishes every year, but makes a figure in the spring, and is common in our hedges. The root is small, white, and woody, the stalks rise to the height of three feet, and are slender, channelled, hairy, and very straight. The leaves, which stand on long foot-stalks, are large, broad, short, and roundish; and those which grow on the stalk somewhat pointed at the extremities, and waved at the edges. They are of a pale yellow green colour, thin and slender, and being bruised, smell like onions or garlic. The flowers, which stand ten or a dozen together at the tops of the branches, are small and white, consisting each of four leaves; these are followed by slender pods, containing small longish seeds. It is found in hedges, and on bank sides, and flowers in May." Many of the simples of England are peculiar to particular spots, as the following extract from Gerarde's Herbal, fol. 1633, Lond. edited by Thomas Johnson, will demonstrate. "Navelwort, or wall penniwoort. The first kind of penniwoort groweth plentifully in Northampton upon every stone wall about the towne, at Bristow, Bathe, Wells, and most places of the West Countrie, upon stone walls. It groweth upon Westminster Abbey, over the doore that leadeth from Chaucer's tombe to the old palace." From an address to his courteous readers, it appears that Gerarde first established his Herbal in the year 1597, in the month of December, and that he then resided in Holborn. Thomas Johnson, Gerarde's editor, dates his address to his reader from his house on Snow Hill, Oct. 22, 1633. Hence it will appear that any thing these writers may have said respecting the structure of the buildings or topography of the suburbs in which they herbarized, is to be depended upon. Snails are brought to market by the Simpler, and continue to be much used by consumptive persons. There are various sorts which are peculiar to particular spots; for instance, at Gayhurst, in Buckinghamshire, the Helix Pomoeria were there turned down for the use of Lady Venetia Digby when in a weak state. The house now belongs to Miss Wright, a descendant of Lord Keeper Wright, where these snails continue in great profusion. Near the old green-houses built by Kent in Kensington Gardens, the same snail is frequently found; it has a yellow shell, and was prescribed and placed there for William the Third. Vipers formerly were sold in quantities at the Simpling Shops, but of late years they are so little called for that not above one in a month is sold in Covent Garden Market. There were regular viper catchers, who had a method of alluring them with a bit of scarlet cloth tied to the end of a long stick.