56 TsB Abironback Black Spruce. 



that he out 1,000 standards (200,000 feet, B. M.) of white 

 pine logs on less than ten acres of land near the west end of East 

 Pine Pond. There were a few black ash trees scattered through- 

 out the timber where the spruce was growing, but no cherry. 



In Township 3, St. Lawrence county, a few elms were 

 growing among the spruces and hardwoods, a species rarely 

 seen in the Adirondack forest. 



A noticeable feature in the growth of the black spruce is that 

 the annual accretion of wood in the trunk is not concentric, the 

 total growth being considerably greater on one side of the heart 

 than on the opposite side. The extent of this eccentricity is 

 apparent in some of the figures given in Table lY, in which the 

 diameter of each tree is not only given, but the number of inches 

 and growth per inch of the longest radius. For instance, 

 Specimen No. 1 had a diameter of 18 inches on the stump, but 

 the figures showing the number of annual rinsrs for each inch in 

 growth indicate that instead of nine inches, which would have 

 been one half the diameter, there were eleven inches between the 

 heart and the bark. Specimen No. 77 is fourteen inches in diame- 

 ter, but the heart is nine inches from the bark. Specimen JMo. 

 135, with a diameter of thirteen inches, shows that there 

 were nine inches between the bark and the heart. In Specimen 

 237 it will be seen that the heart was two inches nearer one 

 side of the tree than the other. In No. 383 the radius is 17 

 instead of 12 inches. This lack of concentricity, as measured 

 by the abnormal length of the longest radius, varies from one to 

 five inches. 



A remarkable feature of this one-sided growth is that it is 

 mostly in one direction. The foresters who examined the trees 

 in Township 20 were instructed to note carefully the compass 

 point to which in each case the longest radius of tree growth 

 pointed. Of 700 trees examined in Township 20, Pranklin 

 county, (the first 700 specimens in Table lY,) this abnormal or one- 

 sided growth was directed as follows : 



