76 Mr. JelTop to Mr. Ray. 



As for what concerns. Plants : They preferve their 

 exprefled Juices with fome few Drops of Spirit of 

 Sulphur } fo little, as communicates no fenfible Tafte 

 to the Juices : They alfo perfume the Bottles with 

 Smoak of Sulphur. , They defire, that if you make 

 this publick, you would be pleafed to fupprefs their 

 Names, left the Apothecaries hereabouts fhould know 

 that this is the Way they ufe. 



Make a ftrong Decodtion of CarduusBenedittus - y 

 into a Quart of it, put 6 or 7 Drops of Spirit of 

 Sulphur, and in a few Days the Decoftion will lofe 

 moll part of its Bitternefs. They cannot find that 

 the Spirit of Sulphur hath the fame Effedt upon other 

 bitter Herbs. I tailed of the Deco£tions of Worm- 

 wood, Germander., Feverfue, in which they faid 

 they had dropped Spirit of Sulphur, which were ex- 

 tremely bitter 5 but a Decodtion of Carduus, into 

 which they had put the fame Quantity of the Spirit, 

 was alipoft infipid. 



They have obferved fomething in the Juices of 

 Herbs as an Indication of their Virtues, analogous to 

 what they have obferved in Urines as an Indication 

 of the Difeafes* and this in three Particulars, the 

 Colour, the Confiftence, and the Froth. 



The Colour of the Juices will be of a deeper or 

 a paler red, as hath been formerly obferved. 



As to the Confiftence, they have obferved a ftrange 

 Variety of Differences : Some will let fall their Dregs 

 very foon •> others not under many Weeks or Months. 

 In fome the Liquor that fwims above will be more 

 crafs 5 in others more tenuious. The Particulars are 

 very many \ of which you may have an Account, if 

 you think it for your Purpofe. 



As to the Froth they have obferved in fome Herbs 

 proper for the Breaft, (namely, fuch as they ufed to 

 give the Juice of jj that being fhaken 3 there arifes a 

 great Froth, which ftays in fome many Days, in 

 fome many Months, before it turn to Water* They. 



named 



