Reference number | NLB/41/277 |
Alternative reference number | NLB/41 p180 |
Level | Item |
Title | Copy letter from Robert William Frederick Harrison, to E W Wallis, Royal Sanitary Institute, 90 Buckingham Palace Road, S.W. |
Date | 12 November 1909 |
Description | The apparatus to which Wallis refers in his letter of 10 November intended for the estimation of dust particles in air, was exhibited by Dr John Aitken. It is believed that the apparatus was made by the Cambridge Scientific Instrument Company. |
Extent | 1p |
Format | Carbon |
Physical description | Typescript |
Access status | Open |