c tke Principles of Part II, 



the bun or woody part of flax has no good 

 efTed: on ground, as the juices are already 

 extracted, by the previous putrefaction 

 which the flax has undergone in the procefs 

 of fteeping, and little now remains but 

 mere earth, 



THE different fpecies of fea-weed, efpe- 

 cially the kelp, are found very ferviceable to 

 land. Thefe weeds are of a foft pulpy 

 texture, and eafily diflblve. Befides, there 

 are no plants which contain fo much fait, 

 and fo much oil, in proportion to their 

 earthy parts. The falts are in fuch quan- 

 tity, that the kelp, though very dry, will 

 not burn ; as all falts, nitre excepted, are 

 enemies to fire. The oils are difcovered to 

 be in great plenty, becaufe this plant, not- 

 withftanding thefe falts, putrefies very foon. 

 The afhes of this plant * confifl of about 

 equal parts of alkaline fait, fea-falt, an oily 

 fubftance, and an earth. 



* Vid. Experiments on bleaching, part 3. feh 6. 



DUNG 



