Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Dr [William Edward] Curtis, King's College, Strand, W.C.2 Gives thanks for the cheque of 17/6 in payment to pay for the author's copies. Sends an official receipt [not enclosed]. Informs that Prof. [Ringe?] of the University of California can expect permission to reproduce a plate from Curtis's paper in the Proceedings Vol. A 101, subject to acknowledgements being made. This is for his paper on Band Spectre for the American Physical Society. 12 December 1925