XXXV1U 
Abbe fontana on the 
teeth ; on the other hand, it does not diffolve fo well in water 
as the other poifon, for indeed a great part of it remains infolnble 
in that fluid. The only confequence which can be deduced 
from the fa£ts above mentioned is, that the poifon is much more 
noxious when applied to the mufcles than when applied to the 
{kin, in which refpefr alfo it agrees very well with the other 
poifons. This {till more convinces us, that the immediate 
adlion of thefe poifons is not againft the nerves, fmce it is cer- 
tain, that the Ikin is more fenfible than the mufcles, and that 
it is all interfered with nerves, 
I have alfo made a few experiments on the oil of tobacco, the 
refults of which I thought it might not be improper briefly to 
relate in this place. 
Experiments made with oil of tobacco. 
I made a fmall incifion in the right thigh of a pigeon, and ap- 
plied to it one drop of the oil of tobacco, and in two minutes it 
loft the ufe of the right foot. 
I repeated the fame experiment on another pigeon, with exaftly 
the fame effect. 
I made a flight wound in the mufcles of the breaft of a pigeon, 
and applied the oil of tobacco to it, and jn three minutes the 
animal could not ftand on its left foot. 
And this fame experiment was repeated on another pigeon, 
with the fame fuccefs. 
Into the mufcles of the hteaft of a pigeon I introduced a tooth- 
pick fteeped in the oil of tobacco, and a few feconds after the 
pigeon fell down feemingly dead. 
Having applied the oil of tobacco to two other pigeons, they 
threw up feveral times all the food they had eaten. 
Two others, treated in the fame manner, but with empty 
ftomachs, made many efforts to vomit. 
In general, I found the vomiting to be a conftant effe<ft of 
this poifon ; but the lofs of motion in the part to which the 
poifon is applied is only accidental. 
None 
