in ACCOUTREMKNT FOR IH! I IKLD aj 



fissile rocks. This cutting or splitting edge should be at 



>t angle to the axis ait it placed upright 



HMO luir with the shaft, much of its efficiency 



is lost, especially in wedging off plates of shale or other 



r.H k-. 



A hammer, shaped as I recommend, serves at times for 

 other than purely geological purposes. On steep grassy 



\ . . , 



slopes, where the footing is precarious, and where there 

 is no available hold for the hand, the wedge-like end of 

 the hammer may be driven firmly into the turf, and the 

 geologist B :> let himself securely down or pull 



himself up. 



The most generally convenient way of carrying the 

 hammer is to h.uc it in a leather sheath suspended from 



