Copy letter from Robert William Frederick Harrison, to the Editor, Philosophical Magazine, Red Lion Court, E.C. 'Dear Sir, I send on the accompanying letter from Paris, which I think may be meant for you. At any rate the Revue Scientifique is already on our exchange list, and we receive it regularly week by week, so that I can only surmise that the applicant is confusing the Philosophical Magazine and the Philosophical Transactions [of the Royal Society]. I am, faithfully yours, Robt [Robert] Harrison Assistant Secretary R.S. [Royal Society]'. 21 February 1906