(ni^o ) 
tervations brought againft it 5 nor indeed any other way left 
to convince it of falfbood, but that only which is drawn 
from the principles of Natural Philofophy. 
II, An AhJlraB of Dr MeadV Mechanical Account of 
Toy/ons fent to the Tubltfher^ by Sam, Morland, 
THe firfl: Effay with which the Dr prefentsus, is con- 
cerning the Viper and its Poifon, His Enquiries were 
the more neceflary here, becaufe the Ancients, as he informs 
us, terrified both by Superftition, and the danger of fuch Ex- 
periments, have left the Anatomy of thefe Creatures very im- 
perfed, and fonfequentiy have reafoned both loofely and 
- precarioufly about the nature and efFeds of its Venome. 
Ckarasy Rhedi and Dr Tjfon have made great advances in 
this matter 5 but *tis upon a yet more accurate account of the 
Strudure and Configuration of all thofe parts that prepare, 
contain and difcharge the deadly Juice that the Dr founds his 
enfuing reafonings. (Which account you have with the ne- 
celTary Figures, as drawn up by that Incomparable Anaromift 
and Learned Phyfician, Dr Areski^ at the end of the firft 
EflayJ 
The Dr makes no fcruple to alTert, that the Viper conveys 
its raifchief by the yellow Liquor, which it emits into the 
Wound, thro a flit near the extremity of the Toorh. He 
hath here decided the controverfy fo long agitated between 
Mr Rhedi and Charas in favour of the former, by feveral fo 
convincing experiments, as that he hath left no room for fn- 
tore doubt or Cavil, making it even plain, that th^ S uies 
itfelf conveyed into a Wound made by incifions, and not by 
the Vipers Teeth, if it beiafufed in a fufficient quantity will 
not 
