|Alternative reference number||NLB/37 p469|
|Title||Copy letter from Robert William Frederick Harrison to Messrs Thos. Firth & Sons, Ltd, (Research Laboratory), Norfolk Works, Savile St. East, Sheffield|
|Date||16 May 1908|
|Description||'Dear Sirs, |
Referring to your letter of May 13, the separate paper by Prof[essor] Ewing & Mr Humfrey ([Philosophical] Trans[actions of the Royal Society] A 326) can be obtained of Messrs Dulau & Co., 37 Soho Square, London, W. It was published at 1/6.'