9 £tf tf?e ^ec|)amcal€)2tgme of 



Juice of Lemons 5 &c. but , that I 

 may. not be obliged to overlook llri- 

 ncus> OJeous 3 and divers other Sol- 

 vents, or to coin new names for their 

 differing Solutive Powers ^ I pre- 

 fume to employ the word Corrojivi- 

 uefs in a greater latitude , fo as to 

 make italmoft equivalent to the So- 

 lutive power of Liquors, referring 

 other Menftruun>s to thofe that are 

 Corrofive or fretting, ( though not 

 always as to the molt proper, yet) 

 as to the principal and beft known 

 fpecies > which I the lefs fcruple here 

 to do y becaufe I have * elfewhere 

 more diftinftly enumerated and 

 forted the Solvents of bodies. 



* This refers to an Effay of the Authors about the 

 Ufefulnefs of Chjmiftryto, &c. 



The Attributes that feemthe moft 

 proper to qualific a 'Liquor to be 

 Corrofive* aieallof them Mechani- 

 cal., being (uch as are thefe that fol- 

 low: 



Firft, That the Meiftruumconfift 

 of, or aboard with 5 Corpufcles not 



, too 



