PLATE VII. 



Fig. 1. 



Digging clay by means of open pits. At the top of the bank, in the back- 

 ground, a workman is driving a wedge into the clay in order to break 

 it off. The clay is hauled to the yard in carts. Hackensack. 



Fig. 2. 



Working a clay deposit with the long working face, and loading material 

 upon cars for haulage to the works. Winslow Junction. 



