126 Scientific Intelligence. 
Cascade or Sierra Nevada were of freshwater species of Diatoms, 
while those from near the coast were marine. In the stratified tufas and 
Mount Hood (South side of the Columbia).—Showers of ashes have 
been discharged several times from Mt. Hood since the cunee was settled 
by the whites. Mr. Dryer of Portland who attempted the ascent in 1854, 
states that steam and - heated gases were escaping from its summit in 
many places at the time of his visit. 
We have thus culled a few facts from Dr. Newberry’s valuable geologi- 
eal report. It is accompanied by Prank ig of Tertiary fossils by Mr. 
Conrad, from California and the Isthmus of Darien: and it is followed 
by a second Report by Dr. Newberry on the Botany of the route, illustra- 
ted by plates 
2. Report on the Fb fatbte e in parame to eon with the routes 
lel between the Rio Grande and Los Pimas alelagees. by Lieut. Jouy G. 
Parxe, Topog. Eng., in 1854 and 1855; being the seventh volume of the 
sELL, M.D., Geologist of the Expedi ition, covering 196 pp., 4 
geological examinations of Dr. Antisell in Southern California a 
over the counties Santa Cruz, Monterey, San Luis Obispo, Santa Barbara 
range, 
height of 3800 feet. range range is not a continuous one, x dropping 
down geaseoneliy to low hills. East of this range is the valley of Sap 
Joaquin; and beyond this, the Sierra Nevada. 
The counties of Santa Barbara, Los Angeles and San Diego are 1e- 
markably subject to eG the average number for the last six 
years is more than nine a 
In the southern part of California no strata have been found between 
the Tertiary and the crystalline rocks in age. Dr. Antisell remarks that 
“there is no good ayeaers that the southern portions of California were, 
so circumstanced as to receive any of the mud or siliceous deposits of the 
4 paleo - But this is an unwarranted pera for it is by no 
: — that the crystalline rocks are the ‘palzeozoic strata 
Teetony of these southern counties is Miocene in age, and is divided 
two or three epochs—(1) “that of the deposition of the brown 
traces of gee: as in the sandstones of Monte Diablo 
2) the calcareous beds a ea, Soe at: Sint Margaeilt 
is « 
ce eee: 
REN Meee 22 
Mae hie ae 
SEAS Ss Wes 5 Sees 
