24 INTRODUCTION 



into various useful commodities. It also includes the merchandising 

 and distribution of these products. The logging, manufacturing, and 

 distribution of forest products play a very important part in the life 

 of the nation. The main branches of forest utilization are the prop- 

 erties and uses of wood, the cutting of the trees, and transportation 

 of the logs to the manufacturing plant, known as logging, the manu- 

 facture, conditioning, and treatment of the products, and the distribu- 

 tion of those products to their ultimate use. Forest utilization gen- 

 erally determines the intensity with which silviculture may be prac- 

 ticed. It is the "bottleneck" through which successful timber growing 

 or forest production must be passed. Until our virgin forest resources 

 shall have been depleted, forest utilization constitutes a most impor- 

 tant phase of American forestry. 



4. Forest Management is the practical application of the principles 

 of forestry to a given forest area. It embraces such subjects as the 

 measurement of the present and potential yield of the forest, engi- 

 neering, such as surveying and mapping tracts of timber, road making 

 and the building of forest structures, and such subjects as forest organ- 

 ization, forest valuation, and finance. It includes the making of 

 working plans under which forest properties are continuously managed. 



5. Forest Policy and Economics include the principles which de- 

 termine the administration of the forest for its best permanent man- 

 agement and use. The question of federal, state, and private respon- 

 sibility in the management of our forests, the manner in which a plan 

 of forestry is adjusted to our social and economic systems, are included 

 within this branch. An important aspect of forest policy is the history 

 and development of the subject and its relation to the political system, 

 of the country. Forest laws and other legislation involving taxation 

 and administration of forests are also included. The part which for- 

 estry plays in general land use planning is a subject of large current 

 importance in the life of the nation. The conservation of water, 

 forests, and forage is closely related and integrated. 



6. ARBORICULTURE AND FORESTRY 



Arboriculture deals with the planting, care, protection, and treat- 

 ment of individual trees, particularly in their use for ornamental or 

 decorative purposes in lawns, parks, home grounds, and along the 

 highways. Forestry is concerned with the growing, protection, and use 

 of large areas of trees. There is a distinction, therefore, between the 

 two. Arboriculture includes what is frequently known as city forestry, 

 municipal forestry, and tree repair. It is an important part of land- 



