Chymical, Medicinal and Chyrirgical Addresses: Made to Samuel Hartlib. London: G. Dawson for Giles Calvert, 1655." /> [BOYLE, Robert (1627-1691)]. "An Epistolical Discourse of Philaretus to Empericus, written by a Person of singular Piety, Honour, and Learning, inviting all true lovers of Vertue and Mankind, to a free and generous Communication of their Secrets and Receits in Physick." In: <I>Chymical, Medicinal and Chyrirgical Addresses: Made to Samuel Hartlib</I>. London: G. Dawson for Giles Calvert, 1655. | Christie's