366 J. Wharton on two products in the Nickel manufacture, 
The cavities of such a mass seemed to me favorable for the 
production of crystals when a tendency to crystallize existed. 
Last midsummer very interesting groups of crystals were in 
fact found upon breaking up one of these masses to fit it for 
remelting; they were so small, however, that, except for search 
eing made in consequence of the matte of that furnace having 
exhibited the plates above named, the crystals would probably 
not have attracted attention. 
Some of these crystals are cubical, with a bright metallic 
luster, the groups aa ling miniat 
lena; others are minute octahedrons, arranged in spicula, and 
ese crystals are very tough, and are highly magnetic. A 
spicula of the octahedrons can be bent many times without 
attached, were submitted for analysis to the chemist of my 
al 
Crystals. Granular. 
Cu 1°85 0-466 1°74 0-438 
Ni and Co 25-22 6-837 28°20 7640 
Fe 64°10 386-622 62°50 85°861 
NS] 8:90 43-925 7-60 43°939 
10007 1:4-93 10004 1:5°78 
The subordinate column in each case shows the uantity of S 
which would be requisite to form, with the metals found, the 
Res Cu,S, Ni, and Co,S, FeS ; the ratio, below it, is that 
of the S found to that thus calculated, 
_If we conceive the copper to exist as Cu,S, we then at 
figures R 82-00 56, indicating, though 
Very closely to the form RS. 
ld the copper be included in the average, we the 
$5 indicating, a 
