Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Prof. D. Robertson, D.Sc., the University, Bristol Informs Prof. D. Robertson of the rules sorrounding the communication of papers. That it must be done by a Fellow or a Foreign Member, and that the communicated paper remains the property of the Royal Society. In the event of an unsuccessful application, either the original or a certified copy will be kept and the author is free to attempt to publish it elsewhere. 29 March 1926