During her voyage of 183542, "Sulphur" had continued earlier hydrographic and natural history surveys of the Pacific Ocean by the Royal Navy; notably that of 183136 by HMS "Beagle", in which Charles Darwin had sailed as naturalist and Captain's companion. A letter of 21 April 1843 from Hinds to Darwin survives. Darwin's annotated copy of Hinds' "The Regions of Vegetation, etc." is preserved in Cambridge University Library.