50 Miscellaneous Notices of American 
racks, and with its picturesque environs, presents one of the 
finest ruinsin America. Happily the garrison ground, consti- 
tuting a farm of about six hundred acres, and including the 
old French lines, as well as the forts and barracks, has fallen 
into the hands of a gentleman, whose good sense and just 
taste will not permit a stone to be removed. This scene, 
fine in its natural beauty and grandeur, and still finer in its 
historical associations, may therefore go down to posterity 
without farther mutilation. Our business with it is now, 
however, of a humbler kind. The rock of which the walls 
and barracks of Ticonderoga* are built, is a black fetid 
compact lime stone. It abounds in this region, and consti- 
tutes the ledges on the shores of the contiguous part of Ver- 
mont. Its stratification is nearly horizontal, and it abounds 
agreeably cool. 
7. Other Mineral Localities, &c. 
Fluor Spar near Providence, R. I—This new locality 
was discovered about a year since, in Seekonk, Mass. three 
quarters of a mile from India bridge in Providence, on the 
north side of the road, and a few rods from the. house of 
Professor Burgess. It occurs in a vein of quartz traversing 
a sienitic or granitic rock which has been blasted to form 
the road, and the fragments of rock abound with this min- 
eral. It occurs also in the rocks in the fields on the south 
side of the road. This fluor, which was at first taken for 
amethyst, is of a deep purple: in the specimen forwarded 
to us by Mr. Thomas H. Webb there are no crystals, The 
phosphorescence by heat is of a lively green mixed with 
spots of red. It may perhaps be regarded as a chloro- 
phane. 
. ® Every where in the vicinity called, with quaint brevity, Ti. 
