WOODI«OTl FORESTRY. 15 



inches, as it was at the time it was cut. This tree was felled 

 because it was the weakest of a crowded group. . 



Specimen C is from one of the smallest chestnut trees cut on 

 this woodlot. Its growth was slow throughout, but especially 

 so since its thirtieth year. It was also crowded by other trees. 

 It would have been at least twice this size if it had grown free 

 from competition. Some trees of this species grew to a 26-inch 

 diameter, while this tree was growing to 9.2 inches. All trees 

 of this species were cut because of the chestnut bark disease. 



Specimen D is from a post oak. This tree was crowded by 

 others on the side of the short radius. On the side of the long 

 radius it grew fairly rapidly until it was about 24 years of 

 age when the crowding became too severe and its growth was 

 seriously checked. Practically all the trees of this species were 

 removed by the thinning, because any of the other oaks are better 

 as regards the rate of growth and market value. 



Specimen B is from a white oak grown from seed. It made 

 a moderate growth for twenty years, but was always crowded. 

 After it was twenty years old the surrounding trees gained su- 

 premacy, and if the cutting had been deferred a few years more, 

 they would probably have killed this tree entirely. The growth 

 rings for the past ten years are so close together that they can 

 only be distinguished under a strong magnifying glass. Of this 

 species only weak individuals, like the one shown here, were cut, 

 as white oak is one of our most valuable forest trees. , 



Specimen F is from a red maple. This tree was out of its ele- 

 ment from the start. The ground here is much drier than its 

 natural habitat, consequently its growth has been very -slow 

 throughout. Up to twenty years of age, the growth was better 

 than from that time on, as is the case with practically all other 

 trees in this stand. In addition to being in an unfortunate loca- 

 tion, this tree, being rather tolerant of shade, persisted in its 

 growth in spite of an amount of crowding which probably would 

 have killed an oak. This is a tree of low value, and, except 

 under very favorable circumstances, is not suited for timber 

 growing. 



