| RefNo | RB/1/20/23 |
| Previous numbers | BP 20, pp. 255-7 |
| Level | Item |
| Title | Experiment by Robert Hooke: 'Of the Refraction of Ice' |
| Date | 11 February 1663 |
| Description | Cf. Birch, 'Royal Society', vol. 1, p. 193.\r\nHand: N |
| Language | English |
| Extent | pp. 255-7 (2 leaves) |
| Format | Manuscript |
| AccessStatus | Open |
| RelatedMaterial | Hooke, 'Philosophical Experiments' (London, 1726), pp. 24-6). |