Mr. Jeffbp to Mr. Ray. 79 



Violets, and Juice of Blue-Bottles j and I doubt not 

 but it will change alfo Cichory Flowers, tho' perhaps 

 with fome Variety, if the Trial be made as it was 

 there. 



The only general Exception that Mr. Fijher knows 

 of, is, that acid Spirits do not work upon Juices of 

 Plants or Fruits tfiat are very acid. Juice of Lemons* 

 they fay, will not change by the Infufion of any acid 

 Spirit they kfrow of, no not by ftanding long, and 

 Corruption, which will change the Juices of many 

 other Fruits or Plants, altho' they be acid. They 

 have alfo made Trial of white Currans, but cannot 

 perceive that acid Spirits alter them. The Reafon, 

 I fuppofe, why Juices turn red by ftanding is, that in 

 time, by a long Fermentation, the acid Spirit loofens 

 it ielf from the other Parts, and then works the fame 

 upon them which an infufed Spirit doth at 

 I infufed Wall Flowers in Spirit of Salt, as 

 vt/ fomewhere faith he did Leaves of yellow 

 but could obferve no Change 3 and yet I am 

 not fatisfy'd fully, until I make trial of a confiderable 

 ' i\ of the Juice, I toid you, that AlcaliYre* 

 ffcored Juices io their natural Colours again 5 but i 

 mail recant : For altho' it happened to fell out fo in 

 fome Trials I faw made, yet they fay generally they 

 turn them into green, or at leaft fome Colour that 

 hath {ome Tincture of green: But yet this Rule is 

 far irom being general, as they confefs 5 as alfo you 

 may obferve in reading Mr. BoyL 



As for what concerns their Experiments about 

 Pif mires, they give yop Leave to difpofe of them as 

 you think good, and do no£ refufe to own them, 

 They have diftiiled Beetles, and many Sorts of Eruca'Sj 

 but not Bees, or any of that Kind > as alfo Fifh and 

 Flerti. They defire that fome Body would endeavour 

 to rectify this Spirit as highly as it is capable, by. im- 

 pregnating calcined Viride J£ris with it feveral times, 

 or iome iuch like feed Salt, which may retain the 



