Letter from [John Young] Buchanan, 26 Norfolk Street, Park Lane, W, to Sir [Archibald] Geikie, [President of the Royal Society] Informs that he has sent 5 photogravures to the Royal Society, four being the ship and groups of the members of the Challenger Expedition, and the fifth, the Chemist and Physicist of the expedition standing in the solid form of water. Hopes they can be considered by the Challenger Committee. 28 November 1912