N. C. GEOLOGICAL AND ECONOMIC SURVEY 



BULLETIN NO. l6, PLATE lit 



FORKED ELM SPLIT UNDER WEIGHT OF SLEET. IT CAN BE DRAWN TOGETHER BV 

 A BOLT IN THE POSITION OF THE DOTTED LINE. FORKS WHICH SHOW THE LEAST 

 SPLIT SHOULD AT ONCE BE DRAWN CLOSE BY A BOLT. 



