ROCK POOLS AND PONDS 



81 



A Pool at the base of Rockery, the cement margin 

 masked by rocks. 



disconnected as desired. A very little water will 

 suffice for a pond or pool of moderate size. In a small 



pool of some 

 three or four 

 yards dia- 

 meter any 

 loss can be 

 made good 

 by the addi- 

 tion of a few canfuls of water. In rainy weather none 

 is needed. In the construction of the artificial pond 

 or pool the chief thing to 'ensure is that it is made 

 absolutely watertight. If it leaks it will be an endless 

 source of worry and trouble. 



If a sufficient supply of good clay is available and 

 inexpensive it may be utilised for rendering the pond 

 watertight, the bottom and sides being lined with it. 

 It must be 

 chopped into 

 small pieces, 

 mixed with 

 water, and 

 then " pud- 

 dled" until 

 it forms* a 



close mass Showing how the cement margin is hidden by 

 impervious rocks and plants. 



to water. A thickness of from six inches to a foot will 

 be sufficient, according to the quality of the clay and 



