( 2^37 ) 
given in NnmK^^ 5 ^fi^fi^ by Experiments to confute the bpi- 
nion^ that the Venom ofVipers refides in the yellow liquor 
contain'd in the Bagg about the Vipers Teeth, and then to 
maintain on the contrary that it confifts in their vexed and en- 
raged Spirits 5 This Author being concerned in this Gontro- 
verfie, and having made out the former of thefe opinions, as 
hethinksj by numerous Experiments 3 doth now in this Let- 
ter affirm, that he repeated his former Tryals again and again^ 
and is thereby altogether confirmed in what he then deliver'd 
about the feat of the Vipers poyfon : coocludiog with more al- 
furance^than ever.thatthe Venom of the Italian Vipers doth 
not confift in an imaginary Idea of revengefull Cholier, but in- 
' that yellow liquor above mentioned 5 which liquor, he faithj 
if itchatKe to&ed or fpread it felf over the mouth and pallat 
of the Viper^may make that Saliva poyfooous^ which moidens 
the throat of that animaU Whence he thinksj it would be ufe* 
-fuMjthat the Learn*d Authors of the French Experiments did 
make new Obfervations, and if they (hall be found cootormto 
thofe they have priGted jand kdeed contrary to £/V,that then it 
might be agreed upon.that there was a truth difcover d hithe 
to unknown^^/i^.That the Venom oi French Vipers confifts in a 
cholerick and vindicative idea of the Fancy ^ but that of the 
-/^^//^«.harhitsfeat in that ■yellow juycefo often fpoken-^of:And.: 
thatjf this latter prove true^it wili be 00 untruth to affirrn.thats 
if a Viper by biting fliould have confutBed both all the provifi- 
on, which is lodged in the baggs ©fher.teeth;^ and that alfb^ 
which from the neighbouring parts may be.furnifli't, that then 
■her bitings would not be mortai-^-Hvhichj^^ here- 
toforcaffirmedjand/doth fo ftillf ■ alr-haiigh'M* fte^/ deoy.ir*^, 
declaringjthat one only Viper being enraged is able to kill as- 
many animals as (he (hall bite. 
In this Vindication^our Author alledgeth a good number of 
frefh Experiments,tomainraiiihis apioioit;^ !a-nd befides thtm-^ 
'divers very rieinarkable Qbfervaifc^ toM^W^ ,that Vipers' dp • 
more eafily kill fome AninialSj,than others ^ that their biting io 
fome places is more dangeroui thaoio others 3 and that plen-/ 
