Memorandum from [Ronald] Winckworth to [Henry Stanley] Raper, regarding a paper 'The nature of fatigue in the auditory system' by [Raymond] C Parker Paper reference code: B.122 Estimates the paper to be 20 pages in length, and published in the Proceedings [of the Royal Society]. Reports that [Hamilton] Hartridge has been proposed as referee, and a physicist may also be asked if needed. Asks whether the paper can proceed if reports are positive. Raper agrees on both counts. [Not published in Royal Society journals but published in the Proceedings of the Physical Society, vol. 50, number 1, 1938]. Received 11 March 1937 9 March 1937