N. C. GEOLOGICAL AND ECONOMIC SURVEY. 



PLATE XII. 



LuiJ.s UF DIFFERENT GRADES. 



Logs chiefly of Grades 3 and 4, diameters 5 to 16 inches. These are the prevailing grades and sizes 



now coming to the mills. Average log about 38 feet, D.-S. (Author's illustration.) 

 Logs chiefly of Grades 2 and 3, diameters 10 to 24 inches. These are the prevailing grades and sizes 



which were cut by the mills between 1895 and 1910. Average log about 90 feet, D.-S. The small 



size of the heartwood is noteworthy. (Author's illustration.) 

 Logs chiefly of Grades 1 and 2, diameters 12 to 36 inches. These were the prevailing grades and sizes 



which were sawed until 1895. Average log about 200 feet, D.-S. 



