Copy letter from James Hopwood Jeans, Secretary of the Royal Society; to Professor [Frederick Alexander] Lindemann, FRS Asks Professor [Frederick Alexander] Lindemann to report on the enclosed paper by [James Blacklock] Henderson and [H. R.] Hasse, 'A contribution to the thermodynamical theory of explosions' [not enclosed]. Explains that the printed pages are abstracted from a confidential paper published in the Gunnery Manual, however, that the War Office are willing to authorise their publication in this paper. 17 June 1921