aarti 
Intelligence and Miscellanies. 185 
think that if more care were taken by our iron masters, in 
observing the progress of their furnaces, and the products 
which they yield, it might be found in many other places; 
certainly it must have been formed in the old Franklin fur- 
nace, in Sussex county, New-Jersey, where so many fruit- 
less attempts were made to work the Franklinite. 
efore | conclude these remarks, | must observe, that it 
ties of iron. In Belgium the iron is of good quality ; and 
it is an interesting fact, that the bar-iron of Ancram is in 
great demand at $120 per ton, a higher price than is at pres- 
ent paid for any imported iron. The castings from the An- 
cram furnace are in sucha repute, that no other pigs are 
used at the West Point foundry for the heavy guns (32 and 
42 pounders) now casting for the United States’ navy. 
The Ancram furnace equals, in beauty of workmanship, 
and economy of means, any that we have seen; and we en- 
tertain no doubt, that all works carried on with such admira- 
ble perfection, must and will always prove equally honoura- 
ble and profitable to their owners and directors. 
8. Inflammability of Ammoniacal Gas. 
I have recently found that ammoniacal gas is much more 
inflammable than it is described to be in the books. Hav- 
ing filled with this gas, over mercury,some jars* which were 
igh et . 1 gby ‘ Pees qua temo: Rinwneban Bi ‘ound 
on bringing a pendent candle over one. whose mouth was 
covered with a glass plate, which was withdrawn at the 
moment, that the gas burned readily as it rose through the 
*The same that belonged to Dr. Hare’s first deflagrator. 
6, 1819. visited the furnace of Verrieres, in the department de la Vienne, 
in France. The director mentioned that his ore was good, and that the iron 
it produced was hkewise } 
which formed in the furnace, five feet below its orifice ; it was i > ! 
i e said, have choked the furnace if not removed, which 
aring. It would, h 
at times was a di undertaking. 1 mentioned to him that it appeared to 
be analagous to the cadmia of Belgium. The specimens w 1 th 
[nal 
E 
S 
E 
anna 
& 
g 
3 
o 
S 
5 
S 
fn 
S 
wn 
Be 
3 
-_ 
S 
B 
we 
° 
5 
ps 
= 
a 
PD 
c 
s 
7 
® 
& 
4 
o 
be 
' 
rmed peor 
ed that the Engineer of mines De Cressac had discovered calamine in that 
vicinity the year before. 
Vor. Vi.—No. 1. 24 
