Copy letter from Robert William Frederick Harrison, to George Walker Walker, [Fellow of the Royal Society], Physical Laboratory, The University, Glasgow In accordance with the request contained in Walker's letter of 10 April to Professor [Joseph] Larmor, Harrison encloses the original manuscript of Walker's paper [not enclosed], 'On the Electric Resistance to the Motion of a Charges Conducting Sphere in free space or in a Field of Force' to enable him to make a copy. Shall be obliged if Harrison will return the manuscript afterwards as soon as possible. 17 April 1905