152 



BOOK VI. 



The iron crowbars are likewise of two kinds, and each kind is pointed at 

 one end. One is rounded, and with this they pierce to a shaft full of water 

 when a tunnel reaches to it ; the other is fiat, and with this they knock out 

 of the stopes on to the floor, the rocks which have been softened by the fire, 

 and which cannot be dislodged by the pike. A miner's pike, like a sailor's, 

 is a long rod having an iron head. 



A — Round crowbar. B — Flat crowbar. C — Pike. 



A — Pick. B — Hoe. C — Shovel. 



