BOOK XI. 



493 



Six long walls : A — The first. B — The first part of the second. C — The 



FURTHER part OF THE SECOND. D — ThE THIRD. E — ThE FOURTH. F — ThE FIFTH. 



G — The sixth. Fourteen transverse walls : H — The first. I — The second. 



K — The third. L — The fourth. M — The fifth. N — The sixth. O — The seventh. 



P — The eighth. Q — The ninth. R — The tenth. S — The eleventh. T — The 



twelfth. V — The thirteenth. X — The fourteenth. 



34 



