Forestry and the National Forests. 



9 



supplies; it is consistent with the grazing of reasonable numbers 

 of livestock and the harboring of wild game, and it in nowise pro- 

 hibits camping and other recreational uses of the forest. It is, in 

 fact, the only practice that ensures all of these things to the peo- 

 ple. The Federal law requires that the national forests be managed 

 so that when timber is removed as it becomes ripe for cutting the 

 areas will be left in shape to produce new crops of timber. 



Forest products. — It is not unusual to think of forest products 

 as lumber, timber, pulp wood for print paper, and fuel, and to 



Forested mountains mean irrigated valleys. 



forget the numberless things into the composition of which wood 

 enters. Turpentine and rosin come from pines. Methyl or wood 

 alcohol is being distilled from hardwoods and ethyl or '"grain" 

 alcohol from softwoods. Phonograph records are 60 to 80 per cent 

 wood flour. Linoleum is made from wood flour and linseed oil. 

 Artificial silk is manufactured from wood cellulose, and certain 

 styles of furniture from paper reeds. Twine, viscose sausage cas- 

 ings, woven bags, baskets, and many other things are being made 

 of paper, the fibers of which grew in the woods. The United States 



