r months, = av4s Dw a! s VAI a ian: has risen during September each year since storm waters have been spread. The average height of water in the wells has risen many feet, and the flow from the tunnel has increased to such an extent that the city now derives its entire domestic supply from that… … on the bottom. The liquid above is to be decanted and thrown away. The vessel is now to be filled with hot water, and all well stirred and then let stand. The clear liquid should be poured off, and hot water again added. When the precipitate has settled and the liquid is decanted off the third…
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