BOOK VI. 



177 



A SUMP. B PIPES. C FLOORING. D TRUNK. E PERFORATIONS OF TRUNK. 

 F VALVE. G SPOUT. H PISTON-ROD. I HAND-BAR OF PISTON. K SHOE. L Disc 



WITH ROUND OPENINGS. M DlSC WITH OVAL OPENINGS. N COVER. O THIS MAN IS 

 BORING LOGS AND MAKING THEM INTO PIPES. P BORER WITH AUGER. Q WlDER BORER. 



