Referee's report by Charles Galton Darwin, on a paper 'Comparison of the acceleration due to gravity at the National Laboratory, Teddington and the Bureau of Standards, Washington, D. C' by B C Browne and Edward Crisp Bullard Sectional committee: Physics Recommended for publication in Proceedings. It is a good piece of work which has been looked over the the National Physical Laboratory. [Published in Proceedings of the Royal Society A, 1940]. Endorsed on verso as received 10 January 1940. January 1940