3: 
396 Mineralogy of Labrador and the St. Lawrence. 
that “ the new coal mine on the north side of the mountain 
presents a bed of coal one hundred feet thick.” “The quan- 
tity of coal on the land of the company is supposed to be 
equal toa four equal-sided prism of five hundred feet on each 
side, and seven miles in length; the largest body of coal 
kno 
There can be no doubt that this coal will become an ob- 
ject of vast national importance. ‘It is a very pure anthra- 
cite, but sufficiently combustible, in @ proper apparatus, 
with proper treatment, to maintain a constantand (if desired) in- 
tense fire, which burns without odour or smoke—is perfectly 
safe although left for the night and without watching, will con- 
tinue till morning, and will then be foundin astate of sufficient 
activity. It is admirable for halls, churches, and other similar 
places, where it is desired to throw into circulation a large 
volume of warm air ; and we have it on the best authority 
that it is excellent for ae smith’s forge, and for other pur- 
poses of the arts.—Eb. 
15. Mineralogy of the coast of Labrador, and of the 
shores of the St Lawrence. A gentleman who lately return- 
oe to this city from the Labrador coast, and whose attention 
_ has been successfully turned to the Mineralogy of the Gaspe 
district, from which some very valuable and beautiful speci- 
mens of the quartz family, particularly the different varieties 
of cornelian, agate, opal, and jasper, have been introduced 
into the province, and cut into different ornamental articles 
by Mr. Smillie, Lapidary of this city, brought up some 
beautiful specimens of the sky-blue variety of the Labrador 
feldspar, a mineral first, and as yet almost exclusively, found 
on that coast. The others and almost all the different 
varieties of this mineral, it is stated, are found on the same 
coast : viz. green, yellow, red, and pearl gray ; the present 
specimen, as stated above, is of the blue; it is hard, and 
takes a fine polish ; the changeability of colour, from a ‘da 
gray to the most bright and vivid sky-blue, is beautiful, and 
makes it very valuable, and well adapted for cutting into 
snuff-boxes, ring-stone s, &c. 
_ “Caemate alluded to were found at Mingan, and 
r to be imbedded in a gray granitic roc 
alate north shore of the St. Lanmeeiiee, from Que- 
bee t to its mouth, and the Labrador coast, offer to the geolo- 
gist and mineralogist, a field for research, such as we believe, 
ie 
2 Lae 
ss —" 
