BOOK XI. 



525 



DaraHB 



A SIDE WALLS. B FRONT ARCH. C REAR ARCH. D WALL IN THE REAR ARCH. 

 E INNER WALL. F VENT HOLES. G CHIMNEY. H HEARTH. I TANK. K PIPE. 

 L PLUG. M IRON DOOR. N TRANSVERSE BARS. UPRIGHT BARS. P PLATES. 

 Q RINGS OF THE BARS. R CHAINS. S Rows OF BRICKS. T BAR. V ITS HAFT. 



X COPPER BED-PLATES. 



36 



