| RefNo | RSL/3/15 |
| Level | Item |
| Title | Letter from John Churchman, Philadelphia, to Sir Joseph Banks |
| Date | 1 October 1788 |
| Description | On the Longitude problem. Including copy of 'The Independent Gazateer' newspaper, printed in Philadelphia. |
| Extent | 8 sides |
| Format | Manuscript and printed documents |
| AccessStatus | Open |
| AccessConditions | No photocopying |