. . . . . . . . "David Perronet, surgeon, his universal dentifrice, or general remedies against all distempers aff[li]cting the teeth and gums in old or young, which may be had at any time, with printed directions for the use of them, at my house in Buckeridge-street, between Dyot-street in Bloomsbury and St. Giles's-Church, at the blue and white ball, the surgeons-sign being likewise over my door"@en . . "Early works"@en . . . . "Prescriptions, formulae, receipts, etc"@en . "Advertisements"@en . . . . "1641-1700" . .