Dept. Bull. 1136, U. S. Dept. of Agriculture PLATE 13 
Cross SECTION OF A SOUTHERN SWAMP OAK TREE CUT INTO BOLSTER 
STOCK AND DRIED 
The black rectangles represent the green size and the exact location of the pieces in the 
tree. The dried pieces exhibit in exaggerated form many of the common drying defects, 
such as checks, honeycomb, diamonding, and even cupping. The difference between 
radial and tangential shrinkage and the comparatively small shrinkage of some of the 
sapwood are illustrated. 
