| RefNo | RB/3/7/1 |
| Previous numbers | BL 7, no. 1 |
| Level | Item |
| Title | [Benjamin Worsley] to Samuel Hartlib |
| Date | 28 May 1649 |
| Description | Copy in Hartlib's hand. Also includes related items. NS: i.e., 18 May 1649 OS. |
| Language | English |
| Extent | 3 leaves (1 conjugate pair, and 1 single leaf), 4o |
| Format | Manuscript |
| AccessStatus | Open |
| RelatedMaterial | Summarised in 'Correspondence', vol. 6, p. 421. For the second extract see HP 1/2/7A-8B |