

Here are contrasts in forests, methods, uses. Above: A father-son team uses a 

 gasoline-powered saw to cut ponderosa pine in Kootenai National Forest, Montana. 

 Some saws are driven by electricity a departure from logging that relies on saws, 

 axes, hard muscle. America has plenty of forest land but saw-timber supply is 

 declining; drain is 50 percent greater than growth. Also, quality of saw timber is 

 deteriorating. Below: Pitsawing tabonuco into lumber for furniture, in Luquillo 

 Mountains, Caribbean National Forest, Puerto Rico. Pitsawing developed into 

 vertical saws driven by water power; later came modern circular and band saws. 



