Dr F.C. Backhouse (London): re ticks from New Guinea. (9p), 21 February 1929-14 March 1929 Date: 1929-02-21/1929-03-14
F.G. Holdaway (Adelaide Uni): re mites taken from pinetrees. (4 letters), 18 February 1926-08 September 1926 Date: 1926-02-18/1926-09-08