Localities of Minerals, | ° 168 
materials, which takes place from twice to three times, or 
more, every hour. 
height was from fifteen to nineteen inches. The upper sur- 
Remarks by the Editor. 
The Cadmia of Bennington is readily volatilized on char~ 
with the usual beautiful combustion of zinc. Pulverized, 
mixed with charcoal powder, and wrapped in sheet copper, 
it readily forms brass, when heated by the compound blow- 
ipe. 
As this cadmia appears to be almost a pure oxyd of zinc, 
ject it appears to be eminently adapted. Metallic zinc might, 
without doubt, be obtained from it, but probably that manu- 
facture would be less profitable than that of brass. 
Feb, 21, 1827. 
clined, at a considerable angle. In other specimens in my 
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