ROOK VI. 



199 



A— Reservoir. B— Race. C, D— Levers. E, F— Troughs under the water gates. 



G, H— Double rows of buckets. I— Axle. K— Larger drum. L— Drawing-chain. 



M— Bag. N — Hanging cage. O— Man who directs the machine. P, O— Men 



emptying bags. 



