Unpublished part published in Works, vol. 11, pp. lxiv-vi; see also ibid., pp. 378-80
Extent:
Fols. 132-6 (5 leaves)
Date:-
1660s and 1670s
Description:
Chapter I, experiments II, V, VI, and VII, with some unpublished paragraphs on loadstones. Several paragraphs have been copied out within this section.
Hand: G (132-3, 136), Slare (134-5)