66 Scientific Intelligence. 
have shown that they exist there; to take away the green color, 
which means Cretaceous, from the whole of the north side of Long 
Island, no facts making the region Cretaceous; to put no color 
over regions “ west of the 100th meridian” where “the Paleozoic 
and Cenozoic systems cannot be subdivided.” 
by J. W. Dawson, LL.D., 
F.R.S., F.G.S., Principal and Vice Chancellor of McGill Univer- 
sity, Montreal. 404 pp. 12mo. London. (Hodder & Stoughton). 
m 
) 
the origin of the kingdom of life. veral plates are introduced 
intended to represent ideal landscapes with their plants and ani- 
mals, such as it is imagined may have been realities in the succes: 
sive ages, in order to impress the characteristics of these ages on 
the progress of geology by Delesse and Lapparent. Abstracts - 
are given of papers in all departments of geology, both theo- 
retical and applied, excepting that of paleontology. : 
12. On iliceous deposit of the t; of Fire 
hole River ; by F. M. Enpuicn. Sixth Annual Report Hayden’s 
U. S. Geol. Survey.—An analysis of a variety, of milk-white color, 
eryptocrystalline structure, semi-vitreous aspect, and G.= 274908 
afforded Dr. Peale— 
$i Xi 4=6 Fe «~—s Mg Ga,Na, Li ign. 
95°84 tr. 2°68 tr. tr. 150=100°02 Fe 
Another kind, of a light greenish-brown to greenish-white color, — 
amorphous structure, vitreous luster and G.=2-0816, contained — 
