C 8 ) 
a 2. Some herbs,Mofres,and R udiments of Vegetal ion,y ield a 
Volatil Salt,diftilled without previous fermentation 5 as do al- 
fo many Seeds.znd feveral of them fufficiently infipid. 
23, Thefe Volatil fpirits and Salts have not only the faun; 
fenfible properties ; but alfo agree in all known efFcfts and 
operations with common Urinous fpirits andfalcs; as, in the 
changing Syrup of Violets and many other vegetable tindurcs 
green 3 in being Diaphoretic, C)iuretic,and De-obftruent;Con- 
trary to Acids , which they do mortifi-e ; praRcipltate all met- 
tals and minerals diflfolved inacidmenftruums ; being highly 
redified,. andmixt with perfedly dephlegmedfpiritof wine, 
ftriketheipj^ W^^jjasChymirtsfpeak; They unite with Acids, 
and thereby become Armoniac,or Neutral Sahs^ and indeed per- 
form whatfoever can be expeded or defiredfrom thecommbti 
Urinous Spirits or Salts. 
So far our generous Naturalijl his Commumcapions for this 
time\ which as they arebuta fmall part of iheAnalyfis of Plants, 
and but one of the heads of the Hidory about Vegetables, thecare 
of which,divers years ago,the R Society recommended to him^ fo 
we doubt not but he will in compliance with their defires, and 
the opinion they juftly entertain of his known abilities, fedu- 
louQy profecute this excellent work, and farther, from time to 
time,impart to the Philofophical world that great flock, he hath 
already in ftore concerning this and many other fubjefls of Phy- 
fiology. Mean time, we are obliged to do him thatright,as to ac- 
quaint the Publick, that this way and thefe Experiments were 
made by him about eight years ago, and thenmoft of them by 
converfation communicated to the Honourable 2?^?^^»^^ Boyle^ 
who doubtlefs will be ready,upon occafion to atteft it, as well 
asdivers other Members of thei?.5'^>r/^/;j',as willallb the Archi^ 
of that Illuftrious Body. 
An Obfer- 
