268 Scientific Intelligence. 
Order third: Propyiire; fam. 1, Quartzose propylite; 2, Horn- 
blendic propylite; 3, Augitic propylite. 
Order fourth: Anpestre; fam. 1, Hornblendic andesite; 2, Au- 
gitic andesite. 
Order fifth: Basaur; fam. 1, Dolerite; 2, Basalt; 3, Leucito- 
phyre. : 
The late date at which this paper is received, prevents any ex- 
tended notice. The author shows that he is familiar with his sub- 
ject through extended observations of rocks in place, and his me- 
moir is an important contribution to this department of Geology. 
Some of the theories adverted to are at variance with views held 
by some eminent geologists, but the well known scientific charac- 
ter of the author, the value of his labors in a similar field before, 
and the amount of field observation and experience which he brings 
forward to support the conclusions arrived at, give them an espe- 
cial weight and value. Ww. 
H. 
3. Report on the Geology of Nebraska—The final report of 
lre 
stage of preparation. Mr. Meek, the Plonctaris. has already 
b 
fi and described over 100 species of Upper Carboniferous syd : 
the Calif ere are.over 350 figures, some of whi 
afford means of comparison of the American forms 
with those identified by Geinitz and others h European types. 
The whole n done in that careful, exhaustive man- 
ner, which ch: all M 0 Twelve plates 
h aracterizes all o 
of fossil — Cretaceous and Tertiary, will accompany the 
report. There will also be a map and full illustrations. 
,_ the preliminary report of Hayden, written in the field, is printed 
in the annual report of the issioner of the Land Office, and 
ll soon be distributed, It comprises nearly 60 pages, and treats 
quite fully of the geological, agricultural, and economical resources 
~ 
of the State, and calls the special attention of the people to the 
importance of cultivating forest trees. It is very desirable that 
these surveys should be continued until every territory west of the 
Mississippi is carefully examined and re n. 
4. Documents sur les Tremblements de Terre et les phenomenes 
ern and northern Pacific ocean and Northwest America ; and h 
€ returns, in his memoir of the above title, to the subject of the 
Aleutian Islands and Alaska, regions in which this country has noW 
a Paha sain 
sible to but very few readers, 
5. Note sur les Tremblements de Terre en 1863 avec ig 7 dBc 
pour les années antérieures de 1843 & 1862; par M. ALExis PERREY. 
214 pp. 12mo, Présentée & Académie royale de Belgique, le 4 
Oe alee eG ae eee eee 
¥ 
EE Dh Tae sae elias Os ah | 
