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Physical relations of forests. 



Effect of environment upon forests: Soil. — Température. — Humidity and rainfall 



— Winds. 



Effect of forests upon environment. 

 Soil: Prévention of érosion, accumulation of humus. 

 Température. — Water supply. — Windbreaks, etc. 

 Forest composition and forest types. 

 General forest structure. 



Qround cover, undergrowth, compétition, etc. 

 Forest types. 

 Tropical rainy. — Monsoon. — Temperate rainy. — Hardvvood or deciduous. — 

 Savanna. — Conifer. — Sclerophyl. — Thorny. - Other forest types. 

 -Silviculture. 

 General cultural conditions. 

 Collection and care of seeds. 

 Nursery practice. 

 Transplanting. 

 Silviculture of particular species (arrange alphabetically by common names reco- 



gnized in Sudworth's checklist). 

 Cultural conditions in particular régions. 

 Forest management. 

 General considérations. 

 Régénération. 

 Reforestation. 

 Fire fighting. 

 Grazing. 



Practical lumbering. 



Conservation and exploitation of forests for other purposes. 

 Forest management in particular régions. 



Working plans (arrange by states in the usual order). 

 Forest reserves and parks. 

 Forest products (See also 5816). 



Food stuffs: Nuts, maple syrup, etc. — Forage: scorns, etc.— Médicinal products. 



— Fibers. — Wood and woodproducts : Lumber, fuel, posts and piles, ties, 

 u^ood pulp. — Tanning materials. — Turpentinc, and resins. — Gums and rub- 

 ber. — Other products. 



Timber testing, préservation, etc. 

 Substitutes for wood. 



Diseases and insect pests. 



Forests and ferestry of particular regions- 



Foods jforage, feeding, fodder. 



Composition and valuation of foods. 



Nutritive values. 



