. 200 Correction. 
12. Acid Fumigations. 
Dr Lyman Foot, of the United States’ Army, mentions, 
in a letter to the Editor, the frequent use of fumigations of — 
muriatic acid gas, among the troops sick at Plattsburgh in 
the latter part of the year 1819. The disease, which was 
termed fyphus icterodes, was of a malignant type; and, 
from the facts stated, the fumigations appear to have had 
a remarkably salutary effect in correcting the vitiated air 
in the wards, and in preventing the extension of the di: 
ease. . | 
on, of Providence, R. I, has pre 
lalogue of American Minerals, 
- districts of each State ar- 
vor such communications he will postpone the publica- 
tion until the Ist of July next. _ All authorities from 
ve any assistance, will be respectfully ace 
2 
knowledged in the work, 
> 
Correction. 
: ; Lei a3 
Dr. Jeremiah Van Rensselaer, in a letter to the Editor, | 
states, that in September last he visited Prospect Hill, one 
mile east of the City of Hudson. and found that the “ circle 
of memorial,” mentioned by Mr. Finch, in his paper. 07 ~ 
“the Celtic antiquities of America,” (Vol. VII. p. 155 of - 
this Journal,) was nothing more than the foundation of aa 
ancient and demolished wind-mill ; “it consisted of abovt 
a dozen rolled niasses of quartz, formiog an irregular cl = 
cle, with stones placed in the centre.” 
eek ioe 
Bi cso eos oe 
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