|Alternative reference number||NLB/40/ p277|
|Title||Copy letter from Robert William Frederick Harrison to S Cowper-Coles, Grosvenor Mansions, Victoria Street, SW|
|Date||10 June 1909|
|Description||'Dear Sir, |
Referring to your letter of May 24th, offering to exhibit a working model showing a method of consuming smoke, it has been decided that it will not be feasible to include this in the programme.'