R Hanisch (Singapore) sending corals for identification, 1898-10-14 Unit ID: 1898/48 Date: 1898-10-14
R Hanitsch (Raffles Museum) sending birds of paradise for identification, 1 June; 5 October; 24 August 1899 Date: 1 June; 5 October; 24 August 1899
R Henry Walcott (National Museum, Melbourne) requesting duplicates of Discovery specimens, 1906-12-04 Date: 1906-12-04
RH Traill (London), 7 October, 17 October, 26 October, 2 November 1889 Unit ID: 425-428 Date: 7 October, 17 October, 26 October, 2 November 1889