Memorandum from J D Griffiths Davies, Secretary of the Royal Society and abstract of a paper 'Photochemical laws and visual phenomena' by B H Crawford to Charles Robert Harington Hill suggest that the paper should be passed since Smith has also deemed it suitable. Publication will be withheld, but a limited number of copies will be printed for government use. Asks if Harington agrees. Has attached a copy of the abstract of the paper. Harington agrees. [Published in Proceedings of the Royal Society B, 1946]. Endorsed on recto as received 10 August 1940. 8 August 1940