ECONOMICAL POND CONSTRUCTION 7,1 



water must be built to obviate damage from 

 floods. This sort of construction work is often 

 complicated and had best be left to profes- 

 sionals, as in the end it will most generally 

 be found a good deal cheaper, and will save 

 much annoyance and disappointment. 



If more than one pond is projected, connect 

 them with each other by drains, making each 

 a little lower than the preceding. With such 

 an arrangement, water can be supplied from 

 a fountain in the first pond, which may be 

 entirely ornamental. This has the advantage 

 that the sun's rays heat the water drops in 

 falling. Further, since it is chiefly the sur- 

 face water which is carried off, the water in 

 the last pond will have the highest tempera- 

 ture. This pond can then be selected for the 

 growing of tender or heat-loving tropical 

 nymphaeas, etc. Even the giant Victoria 

 Cruziana does well in such an unheated 

 pond in St. Louis, for example, but in more 

 Northern regions, some means of artificial 

 heating would have to be installed to help 

 out. 



