280 Scientific Intelligence. 
dic acid and oxyd of iron; but the amount was too small for any definite 
determinations, or even to ascertain whether the iron was in chemical 
combination.—sJ. D. D.] 
Strontiano-calcite, a new species; Dr. F. A. Gentx (Proc, Acad. N. 
Sci. Phil., vi, 114, June, 1852).-——-Crystallization and cleavages like 
calc spar: secondary form an acute rhombohedron of 65° 50’. Crystals 
minute ; occurs in globular masses, the globules terminating in this acute 
rhombohedron. H=—3:5. G.undetermined. Colorless and transparent 
or white and translucent, the former vitreous, the latter pearly in lustre. 
B. B. yields a brilliant light, a slightly crimson flame, and becomes 
caustic. The solution in acids gives a white precipitate with sulphate 
of lime, but not with sulphate of strontia, and it therefore contains 
strontia. After precipitating the strontia in a portion of the solution, 
the addition of oxalate of ammonia produced a precipitate of oxalate 0 
lime. The quantity was too small for a quantitative analysis, but Dr. 
Genth infers that the lime and strontia are in about equal proportions. 
e specimen was from Girgenti, Sicily, where it is of rare occur- 
rence associated with celestine and sulphur. 
2. Large Deposit of Graphite.-—At St. John} N. B., near the new sus 
pension bridge over the St. John’s river, a very extensive deposit of 
graphite has been opened and explored to a considerable extent. The 
levels are of the same mineral.. The quartzose walls have occasionally 
approached, and in some cases masses of quartz, or schist, have been 
facing the sand moulds for iron castings, for which purpose it is ground 
toa fine powder. Some of the finer parts are also used to manufacture 
pencils. Many hundred tons of graphite from this deposit have alre ‘4 
been taken out since the mine was opened two years ago, and the supply 
may be esteemed inexhaustible. The vein or bed reappears 00 
posite side of the St. John’s river, ard on the side now opene' 
been traced over a mile. The position of the deposit in con sc 
metamorphic schists, suggests the conjecture that this deposit of grap 
Pay | represent a former coal bed. not 
3. Flora of the Tertiary Formation, Crome Augsburg Gazeti © 
27th May, 1852; communicated for this Journal by W. G. Leroy 
The flora of the tertiary formation has been hitherto, comparatively 
ae ae aE Cee Te Re: s 
. i 
