42 THE WHITE PINE. 



TABLE VI. Acre yield of White Piiu on >ite in TTitconiin, Hichiyait, Penmylvania, and Maine Continued. 



PENNSYLVANIA. 



SITE /.- Dnbois, Clearfield Connty. 



Description of site. 



Sample area, 1 acre, 1,200 to 1,500 

 feet above Ma. A go of pine, 240 to 

 260 years. Number of trees, 132: 

 White Pine, 37; Hemlock, 84; Ma- 

 ple. 5: Beech. 3; Birch, II. 



Hemlock mixed with While Pine, 

 with occasional Maple. Beech, and 

 Birch, on a hill sloping towards 

 south" -M. "liere it is bound* il l>v 

 the left-hand branch of the Nar- 

 row Creek. The undergrowth, 

 moderately dense, consists of vn-y 

 vminjj Beech, Hemlock, and oeca 

 sional liirch and Cucumber. Sml, 

 yellow clavey loam of a medium 

 grain (6ne shales in iti, deep, fresh, 

 well drained, with 2 to 3 inches 

 mold on top, with surface cover of 

 scanty leaves, fern, tcabcrries, and 

 scattering dogwood (laurel, north- 

 east corner and north side). Sub- 

 soil, laminated shale of an indefinite 

 depth. Density of crown cover, 

 0.7 (in places 0.8). 



White Pine. 



In. 

 15 

 17 

 18 

 19 

 20 

 21 

 22 

 23 

 24 

 25 

 2 

 27 

 28 

 29 

 30 

 31 

 32 

 34 

 40 

 41 

 45 



1 



Feet. 

 120 

 120 

 130 

 130 

 130 

 130 

 130 

 130 

 130 

 135 

 135 

 135 

 135 

 135 

 145 

 145 

 145 

 145 

 145 

 145 

 145 



Volume. 



Boles. 



Cu./t. 



1,370 



570 



651 

 257 



1,140 



610 

 1,220 

 390 

 800 

 511 

 511 

 638 



Ft. 

 B.3I. 



1,360 



6,420 



3,000 



1,390 

 6,600 



3,900 

 7,800 

 2.300 

 4.800 

 3,300 

 3,300 

 4.400 



9,028 52,260 



Tolal yield : 90,103 feet B. M. 



Average annual accretion : White pine, 36 cubic feet. 



209 feet B.M. 



MAINE. 

 SITE a: York County. 



Average annual accretion : White Pine, 77 cubic feet. 

 Ourrtnt accretion : White Pine, 160 cubic feet. 



MAINE. 

 SITE 6: York County. 



Average annual accretion: White Pine, 74 cubic feet. 

 Current accretion: White Pine, 133 cubic feet. 



MAINE. 

 SITE c: York County. 



Average annual accretion: White Pine, 131 cubic feet. 



