276 Scientific Intelligence. 
oal Measures afford numerous beds of iron ores. In the upper 
400 feet of the strata of the southwestern coal field, there are from four 
to six different beds of limestone; one, the Carthage limestone, cropping 
out on the Ohio river, a mile below Uniontown, is eight feet thick, and 
two others have about the same thickness. The lower 900 feet of the 
coal measures afford only two limestone beds worthy df note, immedi- 
ately on the Ohio river; one over the first coal under the Anvil Rock 
(observed in Illinois but not yet in Kentucky), and one about four feet 
stones than their southwestern equivalents. A seven-foot coal bed in 
Hopkins and Muhlenberg counties has generally a heavy dark bitumin- 
is a little over 100 feet thick at the Falls of the Ohio, where it is in 
sight. To the north it gradually thins out. 
The Report, besides chapters also on the Devonian and Silurian rocks, 
rt by Dr. Robert Peter, 
shes over the plains of Quito; by Rev. GnORGE ~ 
0 
our 
home when coming in from a snow-storm. ‘ 
We all presumed that this must come from Cotopaxi, which is about 
thirty miles from usin a South by East direction, and has been in a greater 
or less state of activity for about a year. We had, here, a fall of ashes 
about a month ago, but that was so slight as scarcely to be 
_ The ashes then were black and coarser than in the present case : 
. 
