Full title: ‘’A choice collection of rare secrets and experiments in philosophy. As also rare and unheard-of medicines, menstruums, and alkahests; with the true secret of volatilizing the fixt salt of tartar.’’ Collected and Experimented by the Honourable and truly Learned Sir Kenelm Digby … Hitherto kept Secret since his Decease, but now Published for the good and benefit of the Publick, by George Hartman.
Pages in original color. Source: Internet Archive; Digitizing Sponsor and Contributor: Wellcome Library. This work is available under the Creative Commons, Public Domain Mark: CC-PDM 1.0 with direct link https://creativecommons.org/publicdomain/mark/1.0/