162 Dr. Miller on Phosphoric Acid. 
differ. ‘This Prof. S. under whose inspection the results of 
ty experiments were all noted, and their accuracy assented 
to, will easily decide. 
Dr. Cooper next observes—‘ To the third statement of 
Dr. P. I object that it isnot conformable to my experience.” 
On this it need only be said—the statement is nevertheless 
correct, unless Prof. S. and myself were greatly deceived, 
and that the experiments were scrupulously performed “ in 
the manner directed by Dr. Marcet,” unless there exists 
some ambiguity in the instructions (which are not now be- 
fore me,) that led me astray. It will readily be seen 
that my paper had no reference to poisoning by the pre- 
parations of chrome, of whose action on the system I am 
ignorant. My real design has already been stated. 
As to the case of the man suspected of being poisoned by 
arsenic last winter, I was not present when the experiments 
were made, nor did the affair come to my knowledge till 
some time after, when I was informed, (how correctly I 
know not,) thata man had poisoned himself, and that arsenic 
was found in him after death. Then from the length of 
time which had elapsed since my experiments, and my en- 
gagement in other employments, they had entirely passed 
from my remembrance, as it was not my expectation they 
would be made known to any persons beyond the circle to 
which they were first addressed, and of course itis not to be 
wondered at that they were not mentioned to Dr. Coo- 
per. 
TIMOTHY DWIGHT PORTER. 
Art. XVI.—On the Use of Phosphoric Acid in Jaundice. 
Bristol, (R. I.) April 28, 1821, 
To Pror. Siuuiman, 
Dear Sir—Seeing in your Journal that you solicit com- 
munications, for the promotion of the Arts and Sciences, 
from the effects [have seen produced from the Phosphoric 
Acid in the cure of the Jaundice, I am induced to say some- 
