oe 
aa 
J. Wharton on two products in the Nickel manufacture. 865 
in diameter, freely opened at both ends, is then passed through 
the cork (/) to give the air access to the bottom of the flask 
when the apparatus is in operation. 
The method of action is as follows: heat being applied to the 
oo i> a strong jet of steam issues chvonght , when if the 
ms : 
College of the City of New York, Jan. 14th, 1870. 
Art. XL.—On two peculiar products in the Nickel manufacture ; 
by JosEPH WHARTON. 
I. 
SEVEN years ago, when I was about to commence operations 
ng the fgments 
ce in the matte, I gave directions 
a 
that, when it should next be observed, a close examination 
e 
the bottom of the furnace.* 
This solid mass consists in part of lumps of ore, flux, and 
fuel of the first charge, which reached the hearth imperfectly 
melted or consumed and so remained, and in part of accretions 
from the thoroughly fused matte which, as the furnace worked, 
formed a pool over and enclosing those lumps. 
* It should be explained that the furnaces in question are small upright blast 
furnaces, in whi Mine (Nicolliferous Pyrrhotite with 2 per cent 
8, in which the ores of Gap ne (N feat tee. the juieciant bakig’ & 
Ni and Co), previously roasted, are smelted for the 
Matte containing abost 12 per cent Ni and Co, with about 4 per cent 
