DECOETICATED TREES. 



47 



the tree was in fuU leaf as shown in the cut. In this case the descend- 

 ing sap must have either accumnlated ahove the wound, or, which is 



Fig. XI. — Decorticated Ash-tree. 



more probable, must have reached the lower part of the system by 

 passing through the wood itself, till it reached the point 2 ; as indeed 

 Knight showed must happen in other but less striking instances of 

 complete decortication (Physiol. Papers, p. 130), such as ringing. 



