[ 445 3 
AbftraEi of a Letter from M. Dufay to C. Mortimer, 
dated at Paris, Dec. 1 1. 1737. 
* * * 
HP W O Members of the Academy have been em- 
ployed to make the Experiments relating to the 
Cure of the Bite of Vipers , and they have accord- 
ingly made fome upon Dogs, Cats, Pigeons, Chickens, 
Ducks and Turkeys j fome of which have been cured, 
but fome others died notwithstanding this Remedy ; 
and there were even fome that did not die, though 
they were bit very deep, and yet no Application of 
Oil was made. This is the Report they have made 
ns of thefe Experiments ; and they are determined 
to make new ones.* ** All that can be thought 
concerning the Difference of the Succefs of this Re- 
medy at London and at Faris, as it feems to me, is, 
that all Vipers are not equally venomous ; that all 
Bites are not perhaps equally eafy to be cured 5 and, 
in a word, that the Vipers' in France are more dan- 
gerous than thofe in England \ Finally, the Sequel of 
thefe Experiments will probably teach us, in what 
Cafes this Remedy may be applied in this Country, 
France. 
I fhall tell you a Piece of News: We have here 
made with Succefs the Phofphorus of Kunckel, as 
good and as fine as that of Mr. Godfrey : We made 
nine Drachms at the firft Operation. If you care to 
have the Particulars, I fhall readily fend you them. * * * 
M m m 
VIII. Extract 
