Letter from the Ministry of Home Security on two papers 'Phosphorescence and electron traps - I. The study of trap distributions' and Phosphorescence and electron traps II. The interpretation of long-period phosphorescence' by John Turton Randall and Maurice Hugh Frederick Wilkins to J D Griffith Davies, Assistant Secretary of the Royal Society Requests additional copies of the paper - preferably six. [Both papers published in Proceedings of the Royal Society A, 1945]. Endorsed on recto as received 26 October 1943. 25 October 1943