or eight inches above the upper basin or projecting rim of the column. The 

 water may rise from two to six feet yet higher, according to the supply, 

 only so as to preserve its density or boiling effect, and to keep within the 

 limits of the basin without spreading into mere spray or mist. A fountain 



Figure 25. 



of half-inch bore is as small a size as ought to be adopted. One of an inch 

 bore would produce a pretty good effect ; but a magnificent one would require 

 twice or thrice that bore. 



A rude kind of fountain, or, more properly, a jet, might be introduced 

 upon a rocky island in a lake or pond, or in grounds wearing an aspect of wilder 



o 



