Letter from John Arthur Thomson, Natural History Department, Marischal College, University of Aberdeen, to [the Secretary of the Royal Society] He wishes to apply to the Royal Society so that his son, David Landsborough, might be allowed to occupy the Society's table at the Roscoff Marine Laboratory from 2 July to 6 August. He encloses a letter from the late Professor Yves Delage, showing that his son used the opportunity well. 4 May 1921