| Reference number | NLB/7/640 |
| Alternative reference number | NLB/7 p302 |
| Level | Item |
| Title | Copy letter from Herbert Rix, to Messrs Dulau & Company |
| Date | 27 March 1893 |
| Description | Asks the Messrs to obtain for the Society: Laar's 'Die thermodynamik in der chemie' 1893; and Clifford' 'Elements of Dynamic' 1878, all after part one. |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |