148 FIRESIDE SCIENCE. 



resume its fabrication, and we feel assured that it 

 might become a profitable business. 



We have thus briefly and plainly brought under 

 notice the various kinds of water-pipes which have 

 been used ; and the objectionable or desirable fea- 

 tures of each have been pointed out. 



THE CONCLUSION 



of the whole matter may be presented in a few 

 words. Leaden pipes may be employed to conduct 

 water from ponds and rivers or open reservoirs, 

 under ordinary conditions, with safety. But since 

 disturbing agencies of a local character are liable 

 to occur, of which water-takers can have no knowl- 

 edge until evil consequences result, it will be bet- 

 ter to substitute some kind of pipe which is safe 

 under all possible conditions. Neither tin-lined 

 lead, galvanized iron, or brass pipes meet this want. 

 Iron pipes are entirely unobjectionable on grounds 

 of safety ; and the other undesirable features 

 which have been named are not of so serious a 

 nature as to lead to their rejection for common 

 use as service-pipes. By lining the interior with 

 cement or glass, a conduit pipe is produced which 

 leaves a better one hardly to be desired. Block- 

 tin water-pipes are safe and excellent, but costly. 

 Those who do not mind expense can resort to this 

 pipe for water conduction, with assurance that they 



