Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Hugh Frank] Newall, FRS Refers to H. P. Waran's paper, 'A new form of interferometer', that Professor [Hugh Frank] Newall communicated to the Society. Explains that the referee report is entirely favourable, however, that it suggests that not all the illustrations need to be reproduced. Asks Professor Newall to enquire if the author can reduce their number. 21 February 1921