POISON SUMACH. 107 
of the hair on my forehead to my breast, from the 
middle of my forearm to the tips of my fingers, 
and on the whole inside of my thighs. ‘The con- 
stitutional effects of this thorough vesication were 
but slight. During the first five days, my pulses 
were increased from ten to twenty strokes in the 
minute. The time of duration of the inflamma- 
tory symptoms in this case accords pretty well 
with the account of Prof. Barton, who states, I 
think, the height of it to be on the fifth day. It 
is worth observing, that the operation of the poi- 
son seemed to have a considerable effect in reliev- 
ing me from dispeptic symptoms, with which I 
had been previously troubled, and also benefitted 
a chronic inflammation of my eyes. I am still 
subject to an eruption of watery pustules between 
my fingers, which dry up, and the cuticle — 
off.” Letter dated July, 1815. | 
Many constitutions are but slightly; or not at 
all, affected by the poison of the Rhus vernix. 
This I find to be my own case. After the same 
exposure, which occasioned the case just detailed, 
I experienced no ill consequence, except a slight 
vesicular eruption on the backs of the hands and 
about the eyes, which disappeared in a short time, 
without farther inconvenience. The same slight 
affection I haye felt upon several subsequent ex- 
