APPENDIX. 



Quarter Acre on Towssiiip I, R. XIV, Piscataquis County.* 



Land burnt over aboul IflS years ago. Ground uneven, without strong .slope. Soil 

 stony, sandy loam eovered with mold. 



* IneUuling one -white .spruce in each class. 



t Multitude, up to three inches diameter. 



Average height of dominant spruce about 60 feet. Tallest pine 100 feet. Usual 

 pines, birches and jiojjlars from (JO to iiO. 



Some dead spruce, poplar and birch standing. 



Per Acre— Spruce, 292 trees, 3,480 volume cubic feet; pine, 60 trees, 3,550 volume 

 cubic feet; all species except fir, 436 trees, 7,680 volume cubic feet. 



To exMinininj:; the staud of this (jiuirtcr acre it is Dote-wortliy that the 

 pine, poplar and birch together contain more wood than tlie spruce. 

 ITicse specie-s, iu fact, form an imperfect overgrowth, higher tlian the 

 spruce, to which the slower-growing spruce might be looked on as an 

 undei'growth. The spruce, however, is what we are concerned with. 

 There is more of it than of anj- other species, not so verj'much less prob- 

 abl}' than if there had been no other species on the ground. Let us 

 bring tlie spruce forward again, condensing the table somewhat for rea- 

 sons that will soon be seen. We will also note for each group of trees 

 into which the whole number is divided, the average volume per tree. 



This division on the basis of size has a cor- . ^ 



respondence iu the surroundings and con- 

 dition of the trees. The largest trees are 

 those with largest crowns and most room, 

 advantages which were very likely gained in 

 the flfrst place by an early start. Medium 



sized trees generally resemble one another in 



r) J ]0 and over 



having: a compressed or somewhat thin crown. 8-io 



f'-S 



The smallest trees have small and thin crowns i-ii.'.'.'.'.'.'.'.'.'. 

 and in height are often greatly overborne. 



Size then goes along with present condition 



and with past histoi-y- 

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