CONTENTS. 



CHAPTER I. 



DEFINITIONS. 



Forestry Sylviculture Arboriculture Sciences involved Trees A 

 Species A Genus A Natural Order Names used in scientific de- 

 scriptions 1-4 



CHAPTER II. 



OF SOILS AND THEIK 1'KEPAUATIOX. EFFECTS CF SI.OI'K AXI) ASPECT. 



Composition of Soils Humus Loam How they ali'ert the Qrowthsof 

 Trees Silecious, Calcareous, Argillaceous, and Alkaline Soils Color 

 of Soils How affected by underlying Hocks Preparation for plant- 

 ing Effect of Slope and Aspect Degrees of Inclination 4-10 



CHAPTER III. 



OF CLIMATE AXD METEOROLOGICAL INFLUENCES. 



Definition of Climate The Atmosphere and its Elements Oxygen 

 Nitrogen Carbonic Acid Gas Aqueous Vapor Absolute and rela- 

 tive Humidity Effect of Heat and of Cold Dew Fogs and Clouds 

 Rains Effect of Woodlands Evaporation Percolation Tem- 

 perature of Soils Winds Agency of Water in Vegetation Eil'.-i ts 

 of Frost Injuries from Snow The Timber-line Decline of Fruit- 

 production Ruin from clearing off of Forests Probable Effects in 

 Western Territories 10-28 



CHAPTER IV. 



REPRODUCTION FROM SEKD. 



The Blossom Fertilization Distribution of Tree-seeds Dispersion by 

 Winds, by Animals, by Water Early-ripening Seeds Gathering 

 and keeping of Seeds, Nuts and Acorns Germination Time of 



sowing or planting Vitality of Seeds 28-oG 



(v) 



