INSTRUMENTS USEFUL TO A WOODSMAN. Ill 



which passes up inside the auger. When the proper depth has been 

 bored, the thin wedge (C) is driven into the hollow auger from the 

 shank end and passes between the cylinder of wood and the side 

 of the auger, thus wedging it fast. Then the first twist of the auger, 

 in withdrawing it, breaks off the cylinder of wood even with the 

 inner end and it is withdrawn in the auger. The wedge is then 

 removed, pulling the wood cylinder with it. If this is done care- 

 fully, and the wedge has not been driven in too tightly, the wood 

 cylinder will remain unbroken. The cylinder is then laid in a 

 trough of wood (elder is good) hollowed out to receive it and the 

 top shaved off with a sharp knife at right angles to the rings, which 

 makes them easy to count and measure. 



