| Reference number | MC/1/116b |
| Level | Item |
| Title | Letter from Samuel L. Mitchill, New York, to Dr. Plantou |
| Date | 4 June 1824 |
| Description | Regarding a recent successful demonstration of the 'steam engine without a boiler', an improvement to James Watt's steam engine undertaken by Mr Hawkins. |
| Extent | 1p |
| Format | Typescript |
| Access status | Open |
| Related records in the catalogue | MC/1/116a |
| MC/1/116c |