WINDMII.LS AND PUMPS. 393 



of water, as the castings are perforated with inch slots 

 the entire length. The greatest difficulty in putting 

 them in would be the encountering of boulders or rock 

 in the sand, which would cause loss of labor on a well, 

 as the pipe would have to be pulled up and removed 

 to another point. 



Another satisfac5lory well which is very substantial 

 and will last a lifetime is that which is known as the 

 Cook tubular well. This is made by sinking a series 

 of pipes, eight or ten inches in diameter, down to a 

 gravel stratum through the quicksand. This gravel 

 affords good pressure, which will raise the water up to 

 or a little above the original water-level. When these 

 points are put down into the gravel and four or five of 

 them are connecfled to one powerful pump, about i,ooo 

 gallons a minute can be pumped from them from one 

 year's end to another. Many portions of our western 

 territory must sooner or later depend on pump- water 

 for irrigation along its valleys and rivers during the 

 middle of the summer. Owners should put installa- 

 tions at their places sufficient to supply their farms 

 without the use of the river. ' 



