MIAMI COUNTY. AT5 
stratification. On the east side of the river, at French’s “Old Railroad 
Quarry,” at the time of my visit, au instructive observation could be 
made of the action of the drift on the bedded rock. The stripping of 
one portion was composed of drift clays, bowlders of quartz, granite and 
kindred rocks, and blocks of limestone, all commingled in a mags, and the 
surface of quarried rock beneato, here only four feet in thickness, was 
everywhere smoothed; while in another portion of the same quarry there 
is an additional four feet of the upper portion of the rock, not worn away 
by the same agency which was acting close to it, nor was the surface of 
this portion smoothed. Deter’s quarry, near the mouth of Panther Creek, 
illustrates the character and condition of the drift which I have just re- 
ferred to. 
There are unworn blocks of limestone, rounded masses of the same 
material, rounded and smoothed bowders of granite and quartz rock, 
gravel. sand, and clay, commingled without any kind of selection accord- 
_ ing to quality of material or specific gravity. 
Bowlders.—W hile this class of detached rocks is to be found in all pore 
tions of the country, scattered here and there, there are some special 
belts of them extending in a direction somewhat west of south, through 
the entire extent of the county. The finest collection, in a continuous 
belt, occurs in a line which passes within three and one-half miles to the 
east of Troy, passing through the farm of John La Fevre, on Lost Creek, 
where, as well as both north and south, in a line, it may be observed. It 
continues in a nearly direct line throughout the county. A fine locality 
to observe it is on the turnpike-road, leading from Tippecanoe to New 
Carlisle, between three and four miles from the former place. Here a 
portion of the bowlders have been removed from the field to make room 
for the plow, and besides being ample for the construction of good fences 
are heaped up in long rows on each side of the road, reminding one of a 
region of igneous rocks. Here one may see nearly all varieties of gran- 
ite and quartzose rocks. The variety is astonishing, as if gathered from 
a hundred sources, many of them of very brilliant colors. They have 
been removed to adorn the grounds of residences in the adjoining 
towns. 
They vary in size, some of them reaching a weight of several tons. 
This line extends to and beyond the southern boundary of the county, 
passing about one mile east of Tadmor, where the Dayton and Michi- 
gan Railroad intersects the National road. The belt is fully one mile in 
width, and altogether contains a mass of bowlders to be greatly wondered 
at, whether we consider their combined weight, their variety and beauty, 
or their regular distribution and direction. There is another belt, either 
