476 GEOLOGY OF OHIO. 
an independent one or a spur of the foregoing, which passes by the line 
of the new hydraulic works, near Troy. This has many bowlders of 
great dimensions, and often these of unusual interest; some composed of 
rounded quartz pebbles, imbeded in a matrix of dark mineral; some, 
again, formed of angular fragments of various colors, imbeded in like 
manner. Some of these have been taken to their private grounds as 
adornments by the citizens of Troy. Rev. D. Tenney has one of the 
finest-marked bowlders I have ever seen, on his grounds. About one 
mile north of Troy some very large bowlders of this composite character 
may be seen. One bowlder in this locality measured about six hundred 
and forty cubic feet. The large bowlder, east of Sidney, mentioned in my 
report on Shelby county, is nearly in the line of this belt east of Troy. 
Another great belt of bowlders, but, perhaps, inferior to that in the east- 
ern part of the county, occurs west of the Stillwater, where it may be 
observed in the neighborhood and north of the town of Milton. This 
belt is about 100 feet in altitude above the bed of the Stillwater. Here, 
also, are very large and beautiful specimens of igneous rocks. 
Remains of a Former Race.—It will be necessary to notice but briefly 
the remains which a former race have left. The usual stone and flint 
- implements, which are so abundantly scattered over the country occur, 
also, here in about equal rate of distribution as elsewhere. Heretofore 
those who have picked them up, when engaged in working the ground, 
have either broken them or lost them again, and but a very small num- 
ber can be obtained. But as attention has been called to them, more 
care will be taken to preserve them, and collections of them will be made 
with greater ease hereafter. There are many persons in the county who 
take an intelligent interest in these relics of a people who once dwelt 
upon this soil, and of whose history so little is yet known that every 
thing which will reflect light upon them should be carefully treasured 
up. The cabinet of the public school of Troy contains a number of these 
flint and stone tools, and should be made a depository of many which, 
in private hands, are subject to all the vicissitudes of our uncertain lives. 
Many private collections fall into the hands of unappreciative persons 
when those who have gathered them pass away. This school cabinet is 
an admirable one for purposes of instruction, and will doubtless continue 
to receive from the friends of the schools in Troy additions of value from 
time to time. : 
Remains of Mammals.—These are by no means abundant in the county. 
A fragment of an elk horn, of about eight pounds weight, about ten 
inches long, and without the prongs, and six inches wide, which was 
found on the land of Mr. Isaac Sheets, I saw in possession of Mr. Iva L. 
