Works, vol. 4, pp. 447-8, 450-1, including hitherto unpublished passage.
Fols. 157-8 (2 leaves)
Two passages about ice assuming the shapes of plants, if the water is first impregnated with `the Saline parts of Plants'. Final paragraph not published. Cites Certain Physiological Essays as already published, so MS cannot predate 1661.