184 “Intelligence and Miscellanies. 
of the first furnace erected, the substance must have pre-ex- 
isted to any furnace pi to have been erected there, 
which we think is not the c 
~ Bat, in addition to all es above mentioned proofs, and 
to those which might be drawn from the circumstance of its. 
being found in the vicinity of a furnace, I have been able to 
obtain the evidence of men to the fact of its having been 
formed in it. Having been infarindd that ore from the same 
bed was used at the works belonging to Messrs. Holley and 
Coffing, near Salisbury, I repaired there with a hope of 
finding the cadmia near that furnace also. After a short 
search, I found i it in its immediate vicinity, and was inform- 
ed by Mr. Holley, that he had himself taken it out of his fur- 
nace about twelve erg ago, when they renewed the stack. 
He was positive that it was the same; that it had been 
found about six feet below the orifice of the furnace, and 
that if ee occasionally removed, it would have eventually 
choked I even understood him or his partner to say, 
that this mania was even at present occasionally formed 
in the furnace in pieces of almost one-eighth of an inch in 
digg One of the reasons why it is still formed at Salis- 
bury, and not at Ancram, is probably owing to the ore used 
at peer ets being picked and vee other not. Mr. Patterson 
se anes to Mr. Heron de de V illefosse, a similar substanee 
is formed in the copper and lead furnaces of Julius, Sophia, 
and Ocker, near Goslar, in the Hartz. At Goslar, as wel 
as at Jemmapes in Belgium, this cadmia is considered as 
the best material that could be used in the manufacture of 
brass ; as it is purer than the roasted calamine, it is prefer- 
red to it, as well as to all other zinciferous substances. It 
had not, I believe, been used in Belgium before Mr. Bou- 
-esnel described it. Should it be found in any quantity at 
our furnaces, it would no doubt be equally advantageous to 
work it with copper for brass. 
his substance has not yet been observed in many places. 
{ belies the only spot where it has been noticed, in — 
tion to the above mentioned, is at Verrieres, in France 
where I discovered it in the year 1819.* Tam inclined to 
As no account of the cadmia of Verrieres las as yet been published, i 
shall here add the note which I made on the subject in my journal. “J uly 
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