Copy letter from [William Bate Hardy, Secretary of the Royal Society]; to Sir Jagadis [Chunder] Bose, FRS Informs Sir Jagadis [Chunder] Bose that it is too late to arrange for a demonstration of the crescograph at the meeting on June 24th. Notes that those Fellows who are interested in the crescograph have likely already seen it at the Royal Society of Medicine or elsewhere. [Note at the top left of the page: 'Draft'.] [17 June 1920]