109 



tJie water is a defect, and the mere oS 

 spring of necessity. It is better, indeed, 

 whenever there is only water enough for 

 one half, or for one-third of the land, to 

 make two or three master-feeders, and to 

 float the meadow at two or three turns, 

 than to catch the water in order to use it 

 twice or thrice. This is true when pre* 

 dicated of spring-water as well as of river- 

 water ; for all spring-water has its peculiar 

 impregnations, which it will deposit whea 

 placed in a state of rest, and which will 

 be absorbed, or will be otlierwise sepa^ 

 rated from it, on its being filtered through 

 SL bed of grass. This separation may not 

 be total, but it will be considerable, and 

 consequently there will remain less of 

 these impregnations to be separated upon 

 a second use of the water, and of course 

 the grasses so deprived will be propor- 

 tionally less encouraged in their growth; 



P for 



