Part of Robert Boyle’s manuscript of The general history of the air, edited by Locke for publication in 1692.

The manuscript consists of loose papers, some mere scraps, mounted in a guardbook. The chapter titles appear on separate scraps preceeding the leaves containing the text; in some cases, only the chapter titles are included. The papers are written in various hands, with a few corrections or publication notes by Locke.

The text is incomplete; the first title is missing and the manuscript ends towards the end of Title 17 (pp. 2-100 in the 1692 ed.). “Given by M^r Boyle to M^r H: Oldenburg” (f. 3; may apply only to ff. 3-8)

The introductory notes to the edition in The works of Robert Boyle / edited by Michael Hunter and Edward B. Davis. – London : Pickering & Chatto, 2000. – vol. 12, contain a table of the material in this manuscript (pp. xviii-xxi), including the date and scribe for each piece of paper, as well as its position in the published edition.

109 leaves [really 106 for 1/2, 9/10/ 69/70, 90/1 are single leaves, 94 is double]