12 



diameter. A stand of this class will produce first quality cord- 

 wood, and the chestnut and pine will make saw logs and cross 

 ties. 



Class 1 . This class includes all trees larger and older than 

 the preceding sizes, and a stand in this class will be of saw-log 

 size and of undoubted merchantable value. 



Forest Types. 



Although foresters are not agreed as to the exact definition of 

 a forest type, it is usually understood to apply to the associa- 

 tion of certain species which under certain site conditions of a 

 general character are found growing together. In the wood- 

 lands of Worcester County, with their extraordinary abundance 

 of species, it is possible to construct a great variety of types, 

 and it is very difficult to combine these many types into group 

 types of a number that can be contained in a printed table. 

 We have divided the forest land of Worcester County into seven 

 group types which we will define individually. 



Chestnut. This type is a simple one, consisting as it does of 

 stands which contain at least 75 per cent, chestnut. The 

 remaining 25 per cent, is usually oak, although there may be 

 some pine or maple. When we speak of maple in this bulletin 

 we refer to the red or soft maple, and do not refer to the hard 

 or sugar maple unless it is specifically mentioned. Where pine 

 or oak make up more than 20 or 30 per cent, of the stand, it 

 is put in the pine and hardwoods or the chestnut and oak class. 



Oak. This type is described by its name, and, like the 

 chestnut, a stand in this type is at least 75 per cent. oak. 

 There is often a little chestnut or scattered pines in mixture, 

 and in the younger age classes gray birch and maple; but unless 

 they form more than 20 to 30 per cent, of the stand they are 

 not considered. A smaller percentage of pine is taken into 

 consideration than any other species, and if the stand is one- 

 fourth pine this percentage is enough to throw a stand of this 

 type into the pine and hardwoods type. 



Chestnut and Oak. This type is described by the name, 

 although there are almost sure to be a few other trees in the 

 mixture, such as maple, hickory and an occasional pine. 

 Chestnut, being the most vigorous grower, usually excels the 



