Document Title: MS version of preface to General History of Air.
Related Material: Works, vol. 12, pp. 9-10.
Extent: Fols. 76-7 (2 leaves)
Date: c. 1680 or later
Description: As published, except final paragraph. For earlier version, see BP 26, fols. 222-3. For another copy, see BP 26, fols. 26-7.
Physical Description: Manuscript