TABLES OF MEASUREMENTS. 159 



TABLE VII. Acre yields of second-growth White Pine, with measurements of young pine taken fur analytie Continued. 



C. MASSACHUSETTS: 



(1) SITE a: 



Holbrook, Norfolk County. Sample area : 1 acre. 



Soil : Yellowish-brown sandy loam, shallow, loose, dry, with 1 or 2 inches mold on top and a mod- Age of pine : 35 to 38 years, 

 erately leafy surface cover; subsoil, sand with stones and gravel. Density of crown cover: 0.6. 



forest condition! : White Pine on a slope (angle about 10) ; undergrowth scanty, of Red Cedar 



with scattering Hemlock and White and Red Oak. 



Number of trees : 286. 



ACRE YIELD. 



Average annual accretion : White Pine, 131 cubic feet. 



(2) SITE I, : 



Pembroke, Plymouth County. 



Sample area : 1 acre. 



ACRE YIELD. 



Average annual accretion: White Pine, 92 cubic feet. 



1 Intermixed tpecies: Red Cedar, 2 from 6 to 10 inches diameter and under 60 feet high; 8 from 3 to 6 inches diameter and under 40 feet 

 high. Red Oak, 1 over 6 inches diameter and under 60 feet high ; 1 over 3 inches diameter and under 40 feet high. Hemlock, 4 from 3 to 6 

 inches diameter and under 40 feet high. White Oak, 3 from 3 to 6 inches diameter and under 40 feet high. Young White Pine, 85, 



I'ndergrovth: Red Cedar, 29; White Oak, 1; and Hemlock, 3. 



'Intermixed tpeeiei: Oak, 10 from 10 to 14 inches diameter and under 80 feet high ; 1 over 6 inches diameter and over 60 feet high ; 6 from 

 6 to 10 inches diameter and under 60 feet high ; 2 from 3 to 6 inches diameter and over 40 feet high. Maple, 4 from 3 to 6 inches diameter and 

 over 40 feet high 8 from 3 to 6 inches diameter and under 40 feet high. Gray Birch, 1 over 6 inches diameter and over 60 feet high ; 6 from 

 6 to 10 inches diameter and under t'O feet high ; 43 from 3 to 6 inches diameter and over 40 feet high. Young White Pine, 69. 



Undergrowth: Gray Birch, 21; Maple, 38; Hornbeam, 1, and Sassafras, 3. 



