|Alternative reference number
|Copy letter from Edwin Deller, Assistant Secretary of the Royal Society; to the Secretary of His Majesty's Treasury
|2 June 1920
|Informs the Secretary that the Society have now received a list of the institutions to which sets and parts of sets of the Challenger Expedition Report have been sent. Notes that this list shows there are a number of important institutions without copies and suggests publishing a notice in 'Nature' inviting such institutions to make application for the Report.