A GARDEN IN VENICE 



singing a wild chaunt, much resembling that sung 

 by the Arabs drawing water for irrigation with 

 the sakiyas on Nile bank. The prosaic but more 

 efficient steam-engine now replaces the men. 

 When the first tube is up to its head in the earth 

 a second is screwed into it and hammered down. 

 Then another and another, and so the driving 

 and screwing of length to length goes on till 

 good water is reached. 



Water finds its way into the tube through the 

 holes in the lower length. During the sinking 

 process it will rarely rise of itself to the surface, 

 and is pumped up for testing by a pump con- 

 nected with the tube for the purpose. If the 

 main tube gets choked with mud or sand, as it 

 often does, a small tube composed of lengths 

 four metres long and of i-J inch diameter, and of 

 similar construction to the main tube, is screwed 

 together and passed down till it touches the im- 

 peding matter. A force-pump is then connected 

 with the small tube, and the sand is washed up 

 the main tube by water driven down the small 

 one from above. The main tube cleared, the 

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