220 



MACniXEUY IX CONNECTION WITH WATER. 



Fig. 246. 



Ficr. 2-45. 



D/ive rump. 



prevent the ingress of sand and I 

 mud. The connecting pipe between 

 the cylinder at the bottom and the ] 

 standard at the toj) is wrought or 

 galvanized iron. The pump, of 

 course, needs bracing, to prevent 

 swinorinoj when worked. 



Drive Pumps. Fig. 24G rep- 

 resents the new mode of making 

 wells, by simply driving into the 

 earth common iron gas-pipe, pointed 

 at the lower end, and perforated at 

 the sides, near the lower extremity, 



Deep-^uell Pump. 



