«^4 MANURE AND MANAGEMENT. 



commendable. Farm yards are without 

 form, and unguarded from extraneous 

 water : nor are they fupphed with mold or 

 other abforbent fubilances, to imbibe and 

 retain the fuperSuous juices of the dung. 



11. SEA SAND. This has been a ma- 

 nure ,of the Diflrid;, beyond memory, or 

 tradition. 



There are two species ilill in ufe. 

 The one bearing the ordinary appearances 

 of fea fand, as found ^t the mouths of 

 pvers J namely a compound of the com- 

 mon fand and mud. The other appears, 

 to tlte eye, clean fragments of broken 

 fhells, without mixture -, refembling, in 

 colour and particles, clean-drelTed bran of 

 wheat. 



By analyfis, one hundred grains of the 

 former contain about thirty grains of 

 common filiceous fea fand, with a few 

 grains of fine filt or mud ; the refl is cal- 

 careous earth, mixed with the ^nimal 

 matter of marine fhells. 



One hundred grains of the latter con- 

 tain eightyiive grains of the matter of 



{hells. 



