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N° io. Smaller crydals of the lame fait with 
N° 9. Thefe are, mod of them, of a rhomboidal 
figure. 
N° 1 1. Salt of the Scarborough water, which I 
puchafed, about twenty years ago, from an apo- 
thecary of that place, who there prepared confidera- 
ble quantities of it for file. It does not differ from 
the purified Epfom fait (N° 7.), and that bitter fait 
which I extraded from the marine bittern (N° 8.) 
N° 12. Several fpecimens of native green vitriol, 
from the coal-mines near Whitehaven. I found 
this vitriol in the colliery of Howgill, lying in great 
plenty in the joints or openings of the pillars of 
coal that had been left to fupport the roof of the 
mine, and in a part of it from whence the coal had 
been dug away about forty years ago. The vitriol is 
found in places to which the air feems to have had 
free accefs, and the coal near it commonly appears 
in a loofe and crumbling date. 
N°. 13. A curious ipecimen of the fame green 
vitriol with the foregoing (N° 12.) which may ferve 
to explain how it happens that the various fpecimens 
of this native fait, and of feveral other falts here 
exhibited, affiime a fibrous appearance. The faline 
germinations in this fpecimen (hoot out, or grow 
from the pyrites, pretty clofe to each other, and in 
feveral places are united together into fajciculi or 
clufters ; but in other places there are many openings, 
or vacuities, which, had it remained in its native 
fituation, would, mod probably, have been filled up 
by other filaments arifing from its matrix , and the 
whole 
