320 



FORESTRY AND IRRIGATION 



July 



Fig- 2 Diagram of a pumping plant in the Arkansas Valley in which the water is recovered 

 ^from a dug well having a wooden crib, in the bottom of which are placed seven galva- 

 nized iron strainers or feeders. A chain and bucket pump is used on this well. Better 

 results would undoubtedly be obtained by using a vertical shaft cenirifugal pump 

 submerged in the open well. 



