The papers are 'Ship Construction in Japan', ('Transactions of the Asiatic Society of Japan', 1919) and 'Japanese Ships of the Past and Present', ('Transactions of the Japanese Society of London', 1925).
The related correspondence comprises a copy of a letter from Major M. E. Phipps of Hertford [Grandson of Purvis], to D. W. Waters of the National Maritime Museum, London, inviting an offer for the photographs; letter from Waters to Joseph Needham, asking for his comments; copy of a letter from Needham to Waters, suggesting that the photographs come to the East Asian History of Science Library in Cambridge; further letter from Waters to Needham; letter from Phipps to Needham, thanking him for his interest in the photographs; copy of a letter from Needham to Phipps, expressing appreciation at being able to aquire the material.