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[ 74 ] John Dunlap, Catalogus medicinarum et pharmacorum, Philadelphia, 1771; John Day, Catalogue of drugs, chymical and galenical preparations, shop furniture, patent medicines, and surgical instruments sold by John Day and Company, druggists and chymists in second-street, Philadelphia, 1771; George Griffenhagen, "The Day-Dunlap 1771 pharmaceutical catalog," American Journal of Pharmacy, September 1955, vol. 127, pp. 296-302; also The New York Physician and American Medicine, May 1956, vol. 46, pp. 42-44; Smith and Bartlett, Catalogue of drugs and medicines, instruments and utensils, dyestuffs, groceries, and painters' colours, imported, prepared, and sold, by Smith and Bartlett, at their druggists store and apothecaries shop, Boston, 1795.
[ 75 ] London Mercury, London, August 19-26, 1721.
[ 76 ] Bernard Bailyn, The New England merchants in the seventeenth century, Cambridge, Massachusetts, 1955, pp. 35-36.
[ 77 ] Daily Advertiser, London, September 23, 1743.