| Reference number | NLB/51/379 |
| Alternative reference number | NLB/51 p243 |
| Level | Item |
| Title | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to W L Balls Esq., Little Shelford, Cambridge |
| Date | 4 March 1915 |
| Description | 'I have to acknowledge the receipt of your paper and diagrams, together with a communicating letter from Dr F F Blackman. I note however that Figure 2 and the Chart of Irrigations do not appear to be amongst and other drawings, and shall be glad of a line from you about them.' |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |