Essays of the Strange Subtilty Determinate Nature Great Efficacy of Effluviums. To which are annext New Experiments to Make Fire and Flame Ponderable: Together with a Discovery of the Perviousness of Glass

London: W.G. & M. Pitt, at the Angel Near the Little North Door of St Paul's Church, 1673. Book. Very Good+. Hardback. First Edition, Second State. 12mo - over 6¾" - 7¾" tall. A very good, original edition of the first edition, second state of 1673, being composed of the same sheets with an amended title page correcting the imprint of the four parts, bound as one; Boyle gave Newton a copy of this issue. The contents of the volume comprise; Main title page - Essays of the strange subtilty, determinate nature, great efficacy of effluviums: to which are annext new experiments to make fire and flame ponderable; together with A Discovery of the perviousness of glass [each have separate divisional titles]; An Advertisement to the Reader. Each title has a separate title page, all dated 1673 with printer's ornaments: 'Of the Strange Subtilty of Effluviums'; 'New Experiments, to Make Parts of Fire and Flame Stable & Ponderable'; 'A Discovery of the Perviousness of Glass to Ponderable Parts of Flame with Some Reflexions on it by way of Corollary. Subjoined as an Appendix to His Experiments about Arresting and Weighing of Igneous Corpuscles'. Bound in a most attractive later brown calf in period style with blind impressed design (see image). [8pp.], 69pp [3pp.], 47pp. [1p.], 74pp. [10pp.], 85pp. Errata to page 85. Printed by William Godbid for Bookseller Moses Pitt (active 1654-1696. A very clean, complete copy of this elusive volume. Previous owner's name neatly and faintly to title page (see image). "Effluviums is one of the most important but perhaps less widely known works of Boyle and a most significant one. Had Boyle been bolder in his conclusions which he drew from his experiments on oxidisation, he would have forestalled phlogiston theory which was problematic to chemistry in the eighteenth century". (Fulton 106 & Wing B.3951)..