24 WATER-LILIES 



Ponds entirely made of concrete are 

 adapted to formal gardens only. Their 

 construction on a large scale had best be left 

 to contractors who make a specialty of this 

 sort of work. At the present time, granitoid 

 would most probably be the material selected, 

 reinforced, in the case of large ponds, with 

 steel rods. The cost of construction of a 

 circular pond of this nature and about twenty 

 feet in diameter, would be ^200; that of one 

 thirty feet in diameter, about $2S°- This 

 figure includes all labour, but makes no 

 provision for a heating arrangement which, 

 according to its nature, would cost from 

 $150 to I300. 



Should one wish to do all the work oneself, 

 or perhaps engage unskilled labour, the 

 following style of pond can advantageously 

 be adopted. Having decided upon the size 

 and location of the pond, mark the outline 

 and proceed with the excavation; an area of 

 about 240 square feet to a depth of three and 

 one-half feet can be accomplished by one man 

 in one day. Give the sides a slope of 60°. 



