Copy letter from Robert William Frederick Harrison, to Professor Hugh Longbourne Callendar, Fellow of the Royal Society, Chairman of the Physics and Chemistry Committee Encloses two referee's reports on Sir W Abney's paper 'On a Modified Apparatus for the Measurement of Colour and its application to the determination of the Colour Sensation' [not enclosed]. In view of both reports being favorable, asks if printing of the paper in the 'Philosophical Transactions [of the Royal Society]', may proceed in accordance with Standing Order 43. [6] June 1905