GLACIAL BOUNDARY IN OHIO. 771 
differing, by nearly a right angle, with the general bearing in the northeastern 
counties. 
KELLEY’S ISLAND AND SOUTHWARD. | 
Southeast corner, at water level, long grooves, S. 75° W.; Southeast corner, at 
water level, cross strize, N. 80° W.; Calkins’ quarry, north side, deep grooves, S. 80° 
W.; Calkins’ quarry, north side, striz, S. 70° W.; Calkins’ quarry, water level, stric, 
N. 80° W.; Calkins’ quarry, water level, one heavy groove, S. 45° W.; Calkins’ 
quarry, water level, one striz, S. 60° W. Mean of twelve observations in different 
parts of the Island, S. 80° W.; West Sister Island, mean, 8. 80° W.; Put-in bay, mean 
of twenty observations, S. 80° W.; Sandusky City, mean of four observations, S. 80° 
W.; Sandusky City, mean of two observations, 8. 80° W.; Sandusky City, mean of 
one observation, S. 81° W. 
Erie County.—Belleville, S. 75° W.; Belleville, S. 65° W. 
Oitawa County.—Geneva, S. 65° W. 
Lucas County.—Sylvanus, five observations, S. 50° W.; Monclova, four observa- 
tions, S. 62° W.; Whitehouse, S. 50° W.; near Maumee river, seven observations, S. 
62° W. 
Wood County.—Portage, three observations, 8. 50° W.3 Otsego, three observations, 
8. 64° W. 
Defiance County.—S. 45° W. 
Paulding County.—Junction, three observations, S. 45° W. 
Van Wert County.—Middle Point, two observations, 8S. 15° W. 
Hancock County.—Findlay, three observations, 8. 43° W. 
Putnam County.—Blanchard, 8. 20° W.; Sugar Creek, S. 50° W. 
Auglaize County.—Auglaize, S. 48° W. 
Seneca County—Seneca, 8. 5° E.; Seneca, S. 23° W. 
Wyandot County——Crawford, 8. 20° W.; Crane, S. 5° W.; Marseilles, S. 10.° W. 
Marion County.—-Grand Prairie, north and south. 
Miami County.—Troy, glaciated surfaces, bearings not given. 
Highland County.—New Lexington. According to Professor Orton, very marked 
roches moutonnees. Dr. John Locke, in the Second Report of the First Geological 
Survey, 1838, p. 230, has given a fac simile of polished limestone from Light’s quarry, 
near Dayton, Montgomery county. It was done by placing a scored block in a | 
ruling machine, by which it engraved itself to perfection. The grooves are from 
qo to $4 of an inch deep, and from a line to # of an inch wide. Both the grooves and 
the finer striz are in groups, or fascicles, as high as 10 in number. They were 
perfectly straight, and covered by two feet of earth. The average bearing is about 
S. 26° E., ranging from 19° to 21°, 31°, and 33°; but tbe greater number of the most 
pronounced are 8. 26° E. 
The above abstract is compiled from the observations of Professors 
Newberry, Read, Winchell, and Gilbert, of the Second Ohio Survey, 
and from those of Col. Whittlesey. Most of the irregular and excep- 
tional bearings can be accounted for by the local topography turning 
aside the general movement. The highest elevations are 625 to 650 
