| Reference number | NLB/55/493 |
| Alternative reference number | NLB/55 p270 |
| Level | Item |
| Title | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to J.R. Sykes Esq. |
| Date | 29 April 1918 |
| Description | Letter stating that Sir William Hamilton's book "Campi Phlegraei" is a valuable work and should not be treated as wastepaper but rather donated to The Geological Society or offered to any large bookseller rather than be destroyed |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |