Ship Cover for the composite paddle survey vessel HMS Research [ex-Investigator] (1888). The documentation in this brief Cover mainly relates to the justification and design proposal from the Hydrography Department for a vessel to be employed in survey work in British waters, tabular comparison of specifications with HMS Triton (1882), statements of dimensions and weights for the new ship, authorised armament and allotted ammunition, scheme of complement and stability calculations. The documentation commences in December 1884 at the outset of the design stage and ends in October 1905.