The copie of a letter sent by a learned physician to his friend wherein are detected the manifold errors vsed hitherto of the apothecaries, in preparing their compositions, as sirropes, condites, conserues, pilles, potions, electuaries, losinges, &c: wherein also the reader shall finde a farre better manner how to preserue and correct the same - I. W (Printed by J. Wolfe, 1586)
Caption title. - Dated and signed at end: S. the 21. of this present March. 1586. .. I.W. - Imprint from STC. - Reproduction of the original in the Henry E. Huntington Library and Art Gallery. - STC (2nd ed.), 24906. - Signatures: A-B