Remarks upon Arsenic. 75 
SF ; vii. —Continuation note thie Renioehe made upon n Arsenio? 
cs ag ; a medico-legal fit wen view ; - J. Lawrence 
‘ ae Sun, M. D. of Charleston, 8. ae 
aaa Béitore—Since my last mata on this sabe, there has 
been a great deal of important matter brought to light by those 
of this place (Paris) who were interested with this subject, and I 
had prepared a detailed account of what had been done, and was 
on the point of sending it, when the report of the committee ap- 
pointed by the Academy of Sciences to examine into this ques- 
tion made its appearance. I therefore have been induced to send 
this instead of the other, as it will encroach much less upon your 
Journal, and as also containing statements that are more to be 
relied on. 
In the examination of poisoning by arsenic, all the excrements, 
- Such as matter vomited, urine, &c., as well as all parts of the 
body itself, present matter for investigation. The method by 
which they all are examined, is essentially the same, each one 
exacting the same careful but not difficult manipulations ; no 
we ee er necessary to carry them out, and 
d such as are to be found at every druggist’s 
ee a = antes 
a 
- 
m 
To a es in fac Pa 
ee ee be to. pro- 
| ceed, is to rid ourselves: of-the bigeuic: mundi that forms a latge 
? »part of the liquids and solids that are to be examined, (the liquids 
, should always be evaporated to dryness and treated as the solids 
are.) In-my last letter was stated, what was then considered the 
best method of carbonizing the animal matter; but siuce MM. 
Danger and Flandin have described another, which from the re- 
port of the committee of the Academy, is almost as simple a one 
as can be desired, it being greatly superior to that by nitric acid 
pvsiqunheraie potash i in many poe “are — will be evi- 
ta all. th -— 
ee matter aes placed in ina capsule a sitet (evapora- 
ting dish,) we add to it about one sixth of its weight of sulphu- 
tic acid, and erent “asap until ett acid vapors aoe to eid 
Gis te % oe eee crs 
* See this Journal, Vol. xx, p. 278. 
