AGRICULTURE WITH CHEMISTRY. 185 



age, to preserve a full command of the water, that it 

 may be regulated at pleasure. 



Should a moss or bog be so circumstanced, as to ad- 

 mit of its being drained through a country which might 

 be improved by a supply of vegetable matter, it would 

 be prudent, previously to making the great or leading 

 drains through the adjacent country or moss, to concert 

 measures for making a proper communication by a ca- 

 nal, so that the remote lands might be supplied with 

 peat from the moss, and the moss supplied with Hme, 

 marl, clay, earth, sand, shells, and other materials, from 

 the distant country. 



X 

 4. .' 



As shell-marl is frequently found tinder peat mosses, 

 they should be bored in different places, to ascertain if 

 they possess this valuable substance ; or if they contain 

 tinder the moss a rich clay or limestone gravel: for, in 

 the event of these being found at a moderate depth, the 

 moss or bog may be improved at a much less expence, 

 as the distant carriage of these necessary articles, and 

 the difficulty of carting and laying them on so loose and 

 spungy a surface, would thereby be diminished. 



A a The 



