xii CONTENTS 



Chapter VII. FORESTRY page 178 



Introduction — factors in progress depending directly or indirectly on forests; 

 water-supplies, fertility of the soil, timber, etc. Organization, including training 

 of officers. Destruction and Conservation of Forests — classification of reserves 

 and their utilization; shifting cultivation — the position in the various territories. 

 Forest Botany, Ecology and Stocktaking. The Introduction of Exotic Trees — 

 reasons for planting and problems raised; danger of disturbing the natural 

 balance. Timbers. Minor Forest Products. Pests and Diseases of Forests 



Chapter VIII. ZOOLOGY page 2 1 1 



Introduction — importance of wild animals to man. Organization — territory by 

 territory; objects to which it is directed. Results — taxonomy and animal ecology; 

 the relation between animal periodicity and the control of diseases of domestic 

 animals and humans. Conservation of Wild Animals — preserves, reserves and 

 national parks; international agreement concerning game preservation 



Chapter IX. FISHERIES page 236 



Introduction — importance of developing Africa's fisheries; the need for know- 

 ledge and for control. Organization and Results. Introduction of Freshwater 

 fish — problems raised by such action. Preservation of Fish for Market 



Chapter X. ENTOMOLOGY page 257 



Introduction — importance of taxonomic studies; the menace of insect pests. 

 Organization. Locusts — ^international research. Tsetse Flies— methods of 

 attacking the problem with special reference to Tanganyika, Southern Rhodesia 

 and Nigeria. Pests of Cultivation: cereals, oil-seeds, cotton, root crops, coffee, 

 cacao, miscellaneous; termites; sericulture. Pests of Stored Products. Insects 

 and Ticks in relation to Diseases of Man and Stock 



Chapter XL AGRICULTURE— GENERAL page 301 



Introduction — difficulty of dividing agricultural science into distinct categories; 

 the necessity of understanding native methods of cultivation; aspects of agricul- 

 tural policy; the future for mixed farming. Organization — territory by terri- 

 tory 



Chapter XII. CROP-PLANTS page 335 



Introduction — improvement of crops dependent on co-operation between many 

 branches of research; scientific study of cash-crops; establishment of alternative 

 crops. Origin of Crop-Plants. Research on Crop-Plants — cereals, pulse crops, 

 fodder crops, oil-seeds, fibres, root crops, beverages, fruits, miscellaneous, essen- 

 tial oils and insecticides 



Chapter XIIL PLANT INDUSTRY page 376 



Shifting Cultivation. Improv^ement of Native Cultivation — green manuring; 

 rotation of crops; mixed cropping; composting; mixed farming. Co-operative 

 Societies and Agricultural Policy — peasant versus plantation agriculture; 

 chartered companies. Agricultural Education of Africans. Plant Industry of 

 Non-natives — the fertilizer problem 



Chapter XIV. ANIMAL INDUSTRY page 410 



Introduction — the future for animal industry; importance of water-supply. 

 Stock Surveys — the native breeds of Africa. Improvement of Stock — nutrition 

 and breeding. Overstocking — effects and extent; methods of prevention. Animal 

 Disease — the relationship between the control of disease and overstocking; the 

 present position in Southern, East and West Africa. Hides and Skins — methods 

 of improving their value. Preservation of Meat for Market — problems involved 

 by the African climate. Dairy Industry 



