BOOK VIII 



305 



A UPPER CROSS LAUNDER. B SMALL LAUNDERS. C HEADS OF STRAKES. 



D STRAKES. E LOWER TRANSVERSE LAUNDER. F SETTLING PIT. G SOCKET 



IN THE SILL. H HALVED IRON RINGS FIXED TO BEAM. I POLE. K ITS LITTLE 



SCRUBBER. L SECOND SMALL SCRUBBER. 



