down in this place, partly becaufe of 

 the likenef* of the odour produced, 

 to that which was the effefl: of the 

 laft named Triall} and partly (or ra- 

 ther chiefly) becatife it may (hew us, 

 that a Body, which itfelf is not Qdely 

 inodorous, but very fixt, may yet, 

 in fome cafes, have a great ftroke in 

 the Vkanomena of Odours 5 whether 

 by being wrought on by, and fome- 

 times mingled with 5 the parts of the 

 odorous body ^ and thereby giving 

 it a new modification, I (ball not 

 now ftay to enquire. 



We took then good Salt of Tartar, 

 and put to it feveral times its weight 

 of the expreffed juice of Onions 5 we 

 kept them in a light digeftion for a 

 day or two 3 and then unftopping the 

 Vial, we found the former fmell of 

 the Onions quite degenerated into a 

 rank fmell of Garlick, as Was judged^ 

 even when frefh juice of Garlick was 

 procured to compare them. To va- 

 ry this Experiment, we made with 

 fixt Salts , and fome other ftrongly 

 fented Juices^ Trialls^ whofe events! 



'cwoiild 



