ASIATIC-PACIFIC COLLECTIONS 
3i 
an intensive collection in its base area at Imphal near the Indo-Burma border ; (g) Audy and 
Ash, two members of this laboratory, made an extensive collection in South Burma. The 
material from the Scrub Typhus Research Laboratory has been described by Radford and by 
Womersley and a general account is in press (Audy et al., 1953). 
In addition to these, a number of investigators in the Japanese Army of Occupation made 
sundry collections in the occupied countries. Investigations appear to have centred on the 
Nampogun Boekikyusui-Bu (Japanese Army Institute for Preventive Medicine) in Singapore 
under the direction of Lt.-Colonel Kiyoshi Hayakawa. The Institute issued a number of its 
own Bulletins in Japanese. After the reoccupation, Hayakawa wrote a report of the investiga- 
tions in English and gave it to Colonel M. H. P. Sayers, o.b.e., who gave it to the present writer, 
who in turn arranged through the courtesy of Mr. W. H. Rigglesworth of the War Office to have 
a number of copies made and distributed. Copies were sent to Hayakawa in Japan, while his 
report was abstracted in the Tropical Diseases Bulletin (Hayakawa, 1946). Entries 15, 30, 31, 
38, 39 and 57 in Table 2, relating to these collections, are abstracted from Hayawaka’s report 
and the Bulletins quoted. 
After the War, the work of the British Army Scrub Typhus Research Laboratory was 
continued by the Colonial Office Scrub Typhus Research Unit at the Institute for Medical 
Research, Kuala Lumpur. This unit was supported wholly by Colonial Development and 
Welfare funds from mid-1947 to the beginning of 1952, after which half the research expendi- 
ture has been borne by the Federation of Malaya. Apart from making an intensive collection 
in Malaya, this unit has received a very valuable extensive collection made in various parts of 
India by Lt.-Colonel S. Lai Kalra, who was formerly Pathologist in charge of the G.H.Q. 
(India) Field Typhus Research Team at the joint laboratory at Imphal. Considerable material 
from Hong Kong has also been received from Mr. J. D. Romer, and from Sarawak in collabora- 
tion with Mr. Tom Harrisson, o.b.e., Government Ethnologist and Curator, Sarawak Museum. 
The unit at first undertook the task of a sorting-house while studying the bionomics of the 
ectoparasites of Malayan animals, and trombiculid mites were passed to Womersley who has 
incorporated the bulk of the material in his recent monograph. This unit has also had the 
privilege of collaborating with Lt.-Colonel Robert Traub of the U.S. Army Medical Research 
Units which have been based at the Institute for Medical Research from time to time since 1948. 
As part of this collaboration, two considerable collections have been made in North Borneo 
during the course of other investigations. Most of the material from the first expedition and 
some from the second is described in this Study. Prehminary checklists of the Malaysian 
trombiculids and leeuwenhoekiids (then totalling 93 species of which 52 were hitherto undes- 
cribed) were published for reference in the Annual Report of the Institute for Medical Research 
for 1951. The total number is now nearly 130. The Malaysian collections have been reviewed 
above (Audy and Harrison, this Study , pp. 1-22). 
Summary of Trombiculid Collections 
in the Asiatic-Pacific area (pages 36-41). 
The Summary covers the noteworthy collections made in the area extending from east 
Asia to Australia and the Pacific islands, grouped as follows : A, India, Ceylon, Burma, and 
the adjacent parts of southwest China and Thailand ; B , Malaysia (Malaya, Sumatra, Borneo) 
plus the Celebes and Hong Kong ; C, Japan, Formosa ; D , Philippine Islands ; E , Australia, 
New Guinea, New Zealand, and all the islands in the western Pacific (except for Formosa, 
the Pescadores, and Japan). Entries are arranged within groups roughly in chronological 
order, but an effort has been made to impose some logical order as well. Wffierever possible the 
number of mammalian, avian, and other hosts examined are shown. The number of species 
MALA YA , No. 26, 1953 
