Il 





% 







tin, [: 



\itr) 





dr,j» 



/ir,f 



■ 



i 



* 



.1 1-1 



* 



n 



t 



t 



OF CANADA, AUSTRALIA, &C. 



255 



275. — Napoleonite, or orbicular granite,* composed 

 of spheroidal concretions of white felspar and hornblende, in 

 a more hornblcndic base. The specimen is traversed by a 

 fissure filled principally with white felspar, which has cut 

 through the spheroids, displacing the divided portions from 

 their original positions after the manner of a fault.— Corsica. 



276— Syenite, composed of felspar, hornblende, and 

 quartz, in contact with a basalt dyke.— Montreal Mountain 



Lower Canada. 



277. — Felspar porphyry, composed of crystals oi 

 spar in a felspathic base, with small cavities, containing 



fel 



minute cubes 



ft 



Chambly Canal, Lower Canada. 



278. ~ 



felspar, and a small quantity c 

 sented by J. B. Jukes, F.G.S. 

 279.— Basalt, 



spar 



part of a dyke. 



le, flesh -c 

 ■Australia. 



Pre- 



containing crystals of 



hornblende and 



analcime, Australia. — Presented by J. B. Jukes, F.G.S. 

 280. — Compact greenstone, composed chiefly of horn- 



blende, with 



felsp 



The specimen 



has an irregularly weathered surface. Part of a boulder. 

 •Berthier, St. Lawrence, Lower Canada. 

 281. — Basalt, showing a weathered surface, and con- 



hornblende. — Montreal, Lower 



taining large crystals of 

 Canada. 



282 — Amygdaloid trap, the kernels filled with crystals 



of stilbite (coated with gi 

 replaced by quartz {rock 

 Hostis Bluff, Nova Scotia. 



rth), which are sometimes 

 /). Part of a boulder. 



283. 



Amygdaloid, with decomposing kernels of green 

 earth.— Mountain of Montreal, Lower Canada. 



284 and 285.— Hornblende rock, composed of crystals 

 oi hornblende and analcime, in a hornblende base.— Long- 

 euil, near Montreal, Lower Canada. 



* See also No. 138, Case 1, page 145. 



Uppee 

 Galieex. 



Wall-cases 

 6 and 7. 



