Page:Theophrastus - History of Stones - Hill (1774).djvu/338

322 firt, fairly to give the Arguments ued in Support of the other Opinion; which are principally three, and have the Appearance of being of ome Weight. They are:

To which permit me to anwer,

Firt, That it was incumbent on the Aertors of this Doctrine, to have proved the Exitence of this Native Zaffer, before they attributed uch great Effects to it. I am not ahamed to ay, that I don't know what Native Zaffer is; that I never yet aw any uch Foil, nor believe I ever hall: And, notwithtanding that Dr. Woodward, and ome other able Naturalits have ventured to name ome of their unknown Specimens native Zaffers, I cannot bring myelf to think that Nature ever