HOCKING VALLEY. ns 
5. From Snow Fork, Section 31, Trimble to aria! 4,25 miles, the dip is 107 feet; dip 
per mile, 24.93 feet. 
6. From Section 7, Ward township, to Snow Fork. 1.77 miles, the dip is 45 feet; dip 
per mile, 25.42 feet. 
7. From Section 19, Ward, to Section 7, Ward, 2 miles, the dip is 46 feet; dip per 
mile, 23 feet. 
8. From Section 1, Green, to Section 19, Ward, 3 miles, the dip is 104 feet; dip per 
mile, 34.66 feet. 
Nos. 1, 5, 6, 7, and 8 are on the same parallel, No. 1 being the entire 
distance, of which 5, 6, 7, and 8 are parts showing the moderately undu- 
lating horizon of the coal. 
To determine the line of striko, I select distant points where the coal 
is found at the same elevation. In Section 17, Ward township, the coal 
is 167 feet above the lake; at Ferrara, north line of Section 22, Monroe 
township, it is at the same level. The bearing is north 33° east, which 
is the line of strike, and the line of greatest dip is south 57° east. 
In the north part of Section 19, Ward township, the coal is 231 feet 
above the lake, and near the centre of Section 32, Pleasant township, it 
is at the same level. The bearing and line of strike is north 26° east, 
distance 13+ miles. The line of dip is south 64° east. Near the centre 
of Section 32, Ward township, it is 270 feet above the lake, and in the 
south-west part of Section 24, Pleasant township, it is at the same level, 
distance 144 miles. The bearing and line of strike is north 22° east; 
line of dip south 68° east. . 
It will be noticed that to the eastward the line of strike makes a 
sreater angle with the meridian than at the west. 
In Section 21, Salt Lick, the coal is 289 feet above the lake, and in Sec- 
tion 6, Trimble township, 76 feet; the distance is 85 miles, and sub- 
_ stantially on the line; dip per mile, 25.05 feet. 
These observations indicate that the average dip is about 25 feet per 
mile, and that the line of greatest dip generally varies from south 68° 
east to south 57° east. 
Mr. Nichols’s section, from Haydenville to Section 2, Trimble, is 12 6-10 
miles; dip, 300 feet ; dip per mile, 24.38 feet. His section, from south 
part of Dover to Moxahala, is 18.86 miles; dip to the north, 218 feet ; 
_ dip per mile, 113 feet. Had he made the northern terminus of this sec- 
tion at Marshallville, a little less than eleven miles, the dip would have 
been south about 19 feet per mile. With these irregularities and undu- 
lations, which are admirably illustrated by Mr. Nichols’s charts, and 
which effect the strata at different horizons very differently, so that they 
are constantly approaching or receding from each other, it is evident 
that both the direction and the amount of the dip are factors which are 
