MARYLAND GEOLOGICAL SURVEY 229 



stand of saw timber 10" and over in diameter as shown in tlie lower 

 line of the table is made np principally of white oak, red gum, pin 

 oak, yellow poj^lar, black oak, hickory, chestnut, and beech. The 

 average stand is 3,642 board feet per acre, and the area covered by 

 this class is 4,552 acres, giving a total stand of 16,580,022 board 

 feet. This represents very nearly the amount of timber that is 

 immediately available, and indicates where the stand is sufficiently 

 heavy to warrant logging operations. 



MERCHANTABLE PINE. 



The merchantable pine class, constitutes 13 per cent, of the wooded 

 area, and exceeds that of the merchantable hardwoods over twofold. 

 Most of it is found in the northern and southern districts, with but 

 little in the central part of the county. The three leading centers for 

 merchantable pine are Lanbam, Piscataway and Cedarville. The 

 average stand per acre including all trees 4 inches and over in diam- 

 eter as merchantable, is 13.52 cords. The total stand of merchant- 

 able pine on the 16,799 acres of the class, is therefore, 227,134 cords. 

 This valued at 60 cents per cord, standing, gives a stumpage value 

 of $136,280. The pine with its associated species in this type is 

 sho3\ai in Table III. 



CULLED HARDWOOD. 



This class of stand represents the mixed hardwood forests that 

 have been culled severely until there is little left in the way of saw 

 timber. The average stand per acre for the 70,868 acres of the 

 class is 1,104 feet, board measure, giving a total stand of 86,188,000 

 board feet. The stumpage value of the stand at $2.50 per M. is 

 $215,470. The culled hardwoods are more evenly distributed over 

 the county than any other class and exceed in area all the other 

 iive classes combined, representing 61 per cent, of the total forest 

 area. The composition of an average acre of the stand is shown in 

 the accompanying tal)le. 



CULLED HARDWOOD AND MERCHANTABLE PINE. 



This type of forest constitutes 10 per cent, of the forested area. 

 The stand per acre is 41 C Unwd feet of saw tindjer, and 3.94 cords 



