BOOK VIII. 



399 



A — Water-wheel. B — Axle. C — Stamp. D — Hopper in the upper millstone. 

 E — Opening passing through the centre. F — Lower millstone. G — Its 



ROUND depression. H — ItS OUTLET. I — IrON AXLE. K — ItS CROSSPIECE. L — BeAM. 



M — Drum of rundles on the iron axle. N — Toothed drum of main axle. O — Tubs. 

 P — The small planks. Q — Small upright axles. R — Enlarged part of one. 

 S — Their paddles. T — Their drums which are made of rundles. V — Small 

 horizontal axle set into the end of the main axle. X — Its toothed drums. 

 Y— Three sluices. Z — Their small axles. AA — Spokes. BB — Paddles. 



