Professor P. Carmody, F.I.C., Director of Agriculture, Trinidad—"Preparation of Rubber.” 
Mr. J. B. Carruthers, Assistant Director of Agriculture, Trinidad—“New Methods of Tapping Castilloa 
and “Cover Plants, as a Substitute for Weeding in Rubber, Cacao and other Cultivations.” 
Dr. T. A Henry, Superintendent of Laboratories, and Dr. S. J. M. Auld, Senior Assistant, Scientific and 
Technical Department, Imperial Institute—“The Burning Quality of Tobacco.” 
Mr. G. M. Odium, late Tobacco Expert, Department of Agriculture, Rhodesia—“Tobacco Culture in 
South Africa.” 
Mr. Easterby, Department of Agriculture, Queensland—“Cultivation and Varieties of Sugar-cane at 
the Sugar-cane Experiment Station, Mackay, Queensland.” 
Professor P. Carmody, F.I.C., Director of Agriculture, Trinidad—“Preparation of Paper from Megass.” 
Mr. Benson, Department of Agriculture, Queensland—“Manuring of Tropical Fruits.” 
Professor P. Carmody, Director of Agriculture, Trinidad—“Methods of Manuring, Suitable for Natives.” 
Dr. S. S. Pickles, Senior Assistant, Scientific and Technical Department, Imperial Institute—“The 
Aromatic Grass Oils.” 
Mr. R. N. Lyne, F.L.S., Director of Agriculture, Zanzibar—“Causes Contributing to the Success of the 
Zanzibar Clove Industry.” 
Mr. W. Macdonald, Dry Land Agronomist, Department of Agriculture, Transvaal—“Dry-farming and 
Land Settlement in South Africa.” 
Mr. J. H. Barnes, B.Sc., F.I.C., F.C.S., Principal, Agricultural College, and Agricultural Chemist, 
Punjab, India—“The Alkali Lands of Northern India.” 
Professor P. Carmody, F.I.C., Director of Agriculture, Trinidad—“ Influence of Malarial Diseases on 
Labour Supply” and “Breeding of Stock Suitable for the Tropics.” 
Mr. E. M. Jarvis, M.R.C.V.S., Government Veterinary Surgeon, Department of Agriculture, Rhodesia— 
“ Economic Zoology in African Colonies.” 
Mr. W. Gill, Conservator of Forests, South Australia—“The Introduction of the Remarkable Pine 
(Pinus insignis) into South Australia, and its Successful Utilisation.” 
Mr. F. W. Barwick, Senior Assistant, Scientific and Technical Department, Imperial Institute — “ African 
Wild Silks.” 
Mr. G, C. Dudgeon, Inspector of Agriculture for British West Africa—“Some Important Insect Pests in 
British West Africa.” 
Mr. C. C. Gowdey, Entomologist, Botanical, Forestry and Scientific Department, Uganda—“ Insects of 
Economic Importance in Uganda,” 
The International Association of Colonial Agriculture has also arranged for the collection, in tropical countries, 
of information on a number of subjects of special interest, and general reports on these will be presented to the 
Congress, as well as reports by experts in each country concerned. The enquiries already arranged for are as 
follows:— 
Cotton Cultivation.— 
General Reporter —Professor W. R. Dunstan, M.A., L.L.D., F.R.S., Director of the Imperial Institute. 
Labour Conditions in the Colonies and Tropical Countries.— 
General Reporter —Mr. Batalha Reis, Consul-General for Portugal in London. 
Acclimatisation of European Cattle in Tropical Countries.— 
General Reporter —Professor Meuleman, Brussels Military School. 
Reporter for the British Colonies and India —Mr. S. Stockman, Chief Veterinary Officer to the Board of 
Agriculture and Fisheries of the United Kingdom. 
Alcoholism in the Tropics.— 
General Reporter —Professor Calmette, School of Tropical Medicine, Lille. 
Reporter for the British Colonies and India. —Dr. Daniels, Director of the London School of Tropical Medicine. 
Particulars of subscriptions to the Congress and a preliminary programme are given in the enclosed circular 
issued by the International Association. 
All communications regarding papers for the Congress should be sent to the Secretary of the British Section, 
Imperial Institute, London, S.W, 
