THE MERCHANTABLE FOREST. 



15 



species 12 inches and over in diameter. It may be noted here that 

 the lumberman makes no distinction between Loblolly and Shortleaf 

 Pine, nor is any distinction made in the trade, both being- sold under 

 the name of "Yellow Pine." In the woods, however, the lumbermen 

 distinguish two kinds of timber— Heart Pine and Bull Pine. The lat- 

 ter is called also Second Growth Pine. These terms apply roughly 

 to the two different species, the Heart to the Shortleaf and the Bull 



v, ,20 ° 



^ 1000 



s 



| 



^ 800 



12 



14 



16 



16 



20 



34 



36 



38 



40 



22 24 26 28 30 32 

 DIAMETER BREAST HI6H - INCHES. 



Fig. 3.— Diagram showing the merchantable eontentsin board feet for Shortleaf and Loblolly Pine on 

 i lie i.usis of diameter breastbigb. (Contents by Doyle's Rule. 



to the Loblolly, because by "Heart" Pine is understood a pine whose 

 wood is mostly heart, with very little sap; and by Bull Pine, a pine 

 with a large amount of sapwood; and as a rule the Loblolly contains a 

 greater percentage of sapwood than the Shortleaf. •"Heart" Pine i> 

 supposed to have a thin bark and " Bull " Pine a thick bark. This rule, 

 however, was found to be very uncertain, and can never be relied upon 

 as a botanical distinction between the Loblolly and the Shortleaf. 



