SMALL WATER SUPPLIES. 



Foundation, 

 Pvanp 

 Girder 



FIG. 80. 



simple, free from run- 

 ning cost, and low in 

 repairs, but has the 

 one domineering dis- 

 advantage that in 

 times of hot, dry 

 weather, when water 

 is wanted badly, a 

 windmill has a habit 

 of stopping work. 

 This may, of course, 

 be avoided to a great 

 extent by putting 

 down a plant in ex- 

 cess of what is actu- 

 ally required, and 

 constructing a very 

 large service reser- 

 voir, capable of hold- 

 ing a few weeks' 

 supply, which will 

 retain the excess 

 water pumped in 

 windy weather. A 

 modern windmill is 

 an entirely different 

 machine from the old 

 type of romantic days. 

 A modern mill is an 

 ingenious c o n t r i v- 

 ance and remarkably 

 efficient. Americans 

 are years ahead of 

 Britain in thisrespect. 

 The general arrange- 

 ment is shown in fig. 



