Mineralogy and Geology. 403 
fray, I was able often to go half a mile from coach or camp among the 
bluffs. On one occasion, in company with a companion I was able to 
climb to the top of a bluff of pure chalk, so soft that I could cut and 
ack, On 
immense shells, some of which were nearly four feet in diameter. Amon 
others were remains of Belemnites in immense quantities, but these latter 
I oftener found closely connected with the green shales which I am in- 
clined to believe underlie the chalk. 
When in the midst of these Indian fiends, at a distance of half a mile 
from the a oe ip the fossil jaw of a Mosasaurus, which, though 
nodules or accretions of sen oO 
After travelling in this way for om alae we were supplied with a 
military escort, the commandant of which put an end - my wandering 
away from the road, and thus ended my geological research. 
The chalk bluff extends for a distance of over one sesteal and fifty 
miles east and west, and may be found first at a pane of about three 
hundred nee fifty miles west from Leavenworth, Kans 
coach was driven rapidly along I could see my fossils by the 
peels. poe in the bluffs, which seemed to be chalk, much higher than 
those I have mentioned, but we travelled with so much haste and were 
ealed with so many enemies, that I was unable to decide “vie relative 
position of these interesting rocks. While in the midst of these locali- 
pea Ni Wy deouid 4th, 1866. 
2. Volcanic eruption at Santorin, Grecian Archipelago, and the forma- 
tion of a new island in the Ba a — Translation of a letter from J. Decre@aua, 
dated Santorin, January 23, 6, by Mr. Canfield, American consul at 
Athens, as tai with ications from photographie views, in Har- 
per’s Weekly, Apr 
A remarkable a phen omenon has for several days occupied the ater 
of the inhabitants of Santorin. On the 18th instant a low 
sound was heard from time to time in New Kaimeni, and eipiskiity at 
the place called Vulcano, where are the mineral waters, At the same 
