Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [George] Barger, FRS Asks Professor [George] Barger if he can report on the enclosed paper by T. Barratt and J. W. Lewis, 'The heat developed by the action of caustic soda on cotton' [not enclosed]. Notes that there is question as to whether it is of sufficient general scientific interest to be suitable for publication by the Society, and asks Professor Barger to bear this in mind when reporting. 15 December 1921