3 
Brought fomvard . . 1,246 
Imperial Forestry Institute, Oxford . . • ■ U7 
The Government Botanist, Brisbane . . • • 108 
Forest Research Institute, Kuala Lumpur . . . . 102 
British Museum of Natural History . . • • 87 
Department of Agriculture, Pretoria, South Africa . . 87 
Arnold Arboretum, U. S. A. . . • ■ 73 
University of Cambridge . . . . * • 72 
Sun Yatsen University, Canton . . . . 66 
Botanical Section, Ministry of Commerce, Bangkok . . 45 
Forest Research Institute, Dehra Dun, India . . 40 
Professor H. P. Brown, New York . . .. 40 
Professor L, H. Bailey, New York . . . . 38 
Total 
2,116 
Duplicate timber specimens were distributed as follows 
Professor H. P. Brown, New York 
Imperial Forestry Institute, Oxford 
Forest Research Inst., Dehra Dun, India . . 
Royal Botanic Gardens, Kew 
Arnold Arboretum, U. S. A. .. 
Forest Research Institute, Kuala Lumpur . . 
Botanic Gardens, Buitenzorg, Java 
Botanical Section, Ministry of Commerce, Bangkok 
40 
39 
39 
38 
34 
33 
30 
O 
Total . . 256 
Herbarium material was lent to specialists as follows:— 
Dr. L. Diels, Berlin (Anonaceae, Menispermaceae, 
Meliaceae , Connaraceae) . . . . 1,301 
Bureau of Science, Manila (Derris) . , . . 297 
Forest Research Institute, Kuala- Lumpur (Dipterocar- 
paceae) . . . . . . . . 88 
Botanic Gardens, Buitenzorg, Java . . .. 10 
Total . . 1,696 
Duplicates have been received in exchange from the following:— 
Agricultural College, Coimbatore, India. 
Botanical Section, Department of Agriculture, Pretoria, South Africa. 
Taihoku Imperial University, Taiwan. 
Arnold Arboretum, U. S. A. 
Metropolitan Museum of Natural History, Nanking, China. 
Smithsonian Institution, U. S. A. 
Bureau of Science, Manila. 
Botanic Gardens, Buitenzorg, Java. 
Algemeen Proefstation voor den Landbouw, Java. 
Thanks are due to the following for the loan of valuable material for 
comparison:— 
Royal Botanic Gardens, Calcutta; the Botanic Gardens, Buitenzorg, 
Java; The Curator, Sarawak Museum; Mr. J. N. Milsum. 
Help from the Director, Royal Botanic Gardens, Kew, and from Mr. I. H. 
Burkill in the naming of critical plants is gratefully acknowledged. 
Bamboos 
With the assistance of Mr. J. L. Pestana, Laboratory Assistant, the 
Director undertook a preliminary study of the bamboos in cultivation in the 
Gardens, and those in the immediate neighbourhood. Specimens of perfect 
culm-sheaths from all plants were collected and studied, and it was found 
possible to distinguish all species by this means. In many cases the culm 
sheaths had not previously been described, and valuable information was 
collected which should lead to better identification of bamboos in the future. 
Flowers of some species are still required in order to make possible their 
identification. It is hoped to continue this work, as opportunity offers, with 
the aim of acquiring a knowledge which will enable all local bamboos to be 
identified vegetatively. 
