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Oil from the Seeds of the Sun-Flower. 



30S 



For the encouragement of tliofe who may chufe to im- 

 prove this fuhjed, it may be proper to obfcrve, that all the 

 oils, from whatever vegetable iubftances they are drawn, 

 ■when obtained by exprcffion witli due caution, agree in 

 their general qualities, and arc conftantly mild, even though 

 they are obtained from very acrid fubftances. Thus the 

 expreffed oil of muftard feed is, w^hen frelh, as mild as 

 that of olives, and the bitter almond, or peach kernel, af- 

 fords an oil, by expreflion, as mild as that of fweet al- 

 monds. It is upon this principle, that the fun-flower oil 

 may prove equally valuable with the beft Florence oil, for 

 diet or medicine. For every exprefled oil, when pure and 

 frefh, is void of acrimony, and free from any particular, 

 tafte or fmclL 



Bcfides the uilld oil juft mentioned, fome fubftances con- 

 tain another kind of oil, called It's effential oil, a part of 

 which may be drawn oif with the mild expreffed oil, fo 

 called, and impart it's fmell or tafte to that oil. It is called 

 effential oil, from it's yielding the particular odour of the 

 vegetable, or part of the plant, from which it was obtain-^ 

 cd ; it is pungent to the tafte, and foluble in fpirits of wine, , 

 which the other is not. They may therefore be eafily dif- ■ 

 tinguiftied from each other. 



The oil of fweet almonds, and the oil of olives,, being 

 pure un£tuous expreffed oils, not foluble in fpirits of wine^ 

 but mild to the tafte, and void of odour, very foft, emo- 



lient and lenitive, are chiefly ufcd in medicine and diet. 

 And the reafon why the oil of olives, in particular, is pre-- 

 ferred, is becaufe it is lefs expenfive, and will keep a much . 

 longer time without becoming rancid* 



Perhaps, on trial, the fun-flower feeds may be found to 

 contain an oil that will anfwer the like good purpofes with 

 the falad and m.edicinal oil, now in \ik. If fo, it will have 

 this advantage over that of almonds or olives, that it is a na- 

 tive of the country, maybe always had frefti, and at afmall 

 expence. Whereas the others are the produce of diflant 

 countries, bear a high priccv and are often adulterated oa 



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