124 T. Sterry Hunt on Granitie Rocks, 
minerals; while from the other facts mentioned it would Bae 
to 
47. The veins hitherto noticed, whether feldspathic or = : 
less completely filled geode-like cavities rather than veins. 
§48. In the reprint of my essay, already mentioned, several é 
to a younger series. Such are the veins containing er : 
quasi-anthracitie form of carbon, both from Madoc, and a 
a 
the vein already noticed as occurring in the township of Lake” : 
($36), which contains in one part bismuthine with tourmaline, 
quartz and graphite, and in another part calcite with phlogopite : 
i jated Wi 
is latter vein occurs in an impure limestone, associate@ = 
quartzite and micaceous schists, and belonging to a series 
conformably overlying the Laurentian, and resembling . : 
rocks of the White Mountain series (this Journal, II, ], 83). : 
will be noticed that this vein is lithologically similar to HO” 
of the Laurentian, which are not improbably of the were . 
Caleareous veinstones like those already described, are 
known in the White Mountain rocks in Maine, where are found : 
on a small scale aggregates of erystallized pyroxene, i e 
and sphene, and others of calcite with hornblende, apatite @ fe 
graphite (§18), closely resembling the Laurentian veinstones © 
New York and Gannita: 
