106 



TIMHER PINES OF THE SOUTHERN UNITED STATES. 



fth of ShorUeaf Pine during stage of rigorous grouth, from fifty to one hinidrnl and ; 



Growth of ShorUeaf Pine during stage of slow growth, latest stage of life. 



Number of [ ^\^g« 

 ^^ ■ [stump. 



Heigh 



! to firs 



102 I 



Do, 



Do. 

 Open forest; clay hill; exposur 

 Exposure free: rocky table-Ian 

 Exposure free; gravelly hilKsid 

 Kocky table. land; exposure IVe 



Do. 

 Rocky (able-la 



suppressed. 

 Cold soil; exposure free. 

 Cold soil: exposure free; afiected 



red heart. 

 Exposure free; soil loamy; deep. 



posure partially free; 



sliglitly 

 •et with 



From the general table (No. IV) and the corresponding diagram it seems that in the average 

 the tree at twenty is about 30 feet high, reaches 50 feet at the age of forty, and that its growth in 

 height is in the main finished at the early age of 70. In keeping with this, the growth in 

 diameter is quite rapid during the first fifty years, continues at a moderate pace up to SO, when 

 the age of slow growth is entered. 



