N. C. GEOLOGICAL AXD ECONOMIC SURVEY. 



PLATE X. 



A. Characteristic wood from middle and upper section of rapidly growing tree. The relatively small 

 amount of hard summerwood in this portion of the stem is typical. (Author's illustration.) 



B. Wood from tree growing on very wet soil, showing characteristic irregularity of grain. 



(Author's illustration.) 



TYPES OF LOBLOLLY PINE WOOD. 



