544 JOURNAL OF FORESTRY 



Southern Pines (Louisiana) 



The tallest longleaf pine measured by the Forest Service was 152 

 feet high on a stump radius of 14 inches. 

 For this tree _ 



h = 26.2 Nf' 

 Hence/t = 0.41/f 

 This same relation holds for the tallest white pine and tallest short- 

 leaf pine measured by the Forest Service. 



Shortleaf Pine 



The tallest shortleaf pine measured by the Forest Service was 127 

 feet high on a diameter of 22.3 inches. 

 For this tree _ 



h = 25.5 Vr2 

 Hence h = OAlH 

 This is the same as the corresponding relation for white pines and 

 longleaf pines. 



California Yellow Pines 



These pines stand, as related to the greatest height they can reach, 

 about as Michigan and Pennsylvania white pines. They are not as 

 tall, on a given stump radius, as the eastern trees. Their heights on a 

 given stimip radius, as compared with Michigan and Pennsylvania 

 white pines, are about as 55.5 to 59.4, the nimibers which compare 

 their greatest heights (last column of Table E) . See similar conditions 

 with Tennessee white oaks. 



Pacific Coast Sugar Pine 



These pines keep all the time for 360 years about one-third the 

 greatest height they could attain on their sttmip-radius. 



(I have not values of E and w for these pines.) 



Redwood (Sequoia sempervirens) 



The table figures, p. 540, represent second growth timber and are an 

 average for 550 trees up to 45 years old. The range of this species lies 

 almost entirely outside the National Forests, and authentic measure- 

 ments upon original growth trees are almost entirely lacking. Bulletin 

 38 says that this species of Redwood (different from the Bigtree, Sequoia 

 washingtoniana) is the tallest of American trees, giving 350 feet on a 

 20-foot diameter as the limiting size. It seems to me that Douglas 

 firs should be classed as our tallest trees. Mr. Donald McDonald, 

 General Manager of the Pacific Lumber Co., mentions a tree 69 feet 



