rieties of this {tone, fome very full of mica;
The veins are what the miners call rakc>
atid of confiderable extent. Some of them
have heen worked about i oo fathoms funk
in the vein, •without any perpendicular
fhaft. The companies that have hithertd
worked thefe mines have always been unfortunate;
and they are now full of vrater.
Belides lead ore, was, produced Jlrontian
a rare and new variety of earth ; with calca,-
reous cryftallizations, zeolite, ftaurolites;
&c. but none of thefe fubftances are now
to be found. I was there in July 1800,
and could not procure one ounce of the
ftrontianite; and was informed, that two or
three people had, for mare than a year*
been employed in picking it up, Wherever
it could be found.
Ben RilTabel, in the ftatiftie account
of Scotland, Vol. XX. p. 289, it is called
Ben
Ben Reifipoll, and the height is faid td
be 887 yards. A very High mountain
of white granite, is about fix miles td
the weft of Strontian ; the fummit prc-
fents a micaceous vein, containing large
garnets.
I returned by Collendon to Stirling. In
the neighbourhood of the latter place the
Ochill Hills, efpecially near Alva, contain
veins that produce filver, copper, cobalt,
lead, &c. The mines are not now worked;
but the naturalift who takes the trouble
of picking the hillocks, and fearching the
mountain, will meet with fome recom-
pence for his labour. At Edinburgh is
Weir’s mufeum, where I hope to fee mineralogy
more noticed ; the largeft departments
are the birds and the fifti. Arthur’s
feat, and Salifbury Craigs, are of bafalt,
fometimes forming rude irregular pillars.
The