124 
JOURNAL OF THE GEOLOGICAL SOCIETY OF DUBLIN. 
to the top, I give the results as they turned out, in the following 
tabular statement:— 
No. 
County. 
Locality. 
Feet. 
1. 
Armagh, . 
At Annaclare, 2 miles N. E. of Armagh, 
1090 
2. 
Sligo, . . 
At Clonacool, 12 miles S. W. of Colooney, . 
1020 
3. 
Roscommon,. 
At Boyle, through the town,. 
740 
4. 
Galway, . 
c 
At Toberelathan, 6 miles S. W. of Loughrea,. 
430 
5. 
Clare, . . 
At Capparoe, 1 mile N.W. of Tomgraney, . 
790 
6. 
11 • • 
d 
At Raheen, 1 mile S.W. of Tomgraney, . . 
1460 
7- 
11 • • 
At Killea Church, 4 miles N. of Limerick, . 
630 
8. 
Tipperary, 
At Newtown, 3 miles N.W. of Nenagh, . . 
1220 
9. 
11 • 
At Bally william, 3 miles S.W. of Nenagh, . 
910 
10. 
11 • 
At Birdhill, 10 miles S.W. of Nenagh, . . 
1230 
11. 
Kilkenny, 
At Curraghglass, 1 mile N. E. of Borrisoleigh, 
1050 
12- 
e 
At Currahill, 1 mile W. of Ivilmaganny, 
1680 
13. 
Wexford, . 
f 
At Croats, 2 miles S.W. of Wexford, . . . 
310 
14. 
11 • 
f 
At St. Lennan’s, 7 miles S.W. of Wexford,, 
260 
15- 
f\ 
At Duncormack, 9 miles S.W. of Wexford,. 
230 
16- 
11 * 
9 
At Templetown, 5 miles S. E. of Duncannon, 
450 
OBSERVATIONS ON SOME OF THE FOREGOING SECTIONS. 
2. The section at Clonacool is on the south-east flank of the Ox 
Mountains. It ought to be a good average one. The red rock is 
well exposed in the river, the dips pretty regular, and the data 
generally good. 
3. At Boyle, from the depth of the bed of the river below the 
land adjacent, that there may be a fault in this line. This would 
derange the succession in the section. 
4. The section at Toberelathan, near Loughrea, is a good and 
clear one; both the bottom and the top of the band are visible 
there. The result of the measurement gives only 430 feet as its 
thickness* which appears very small. It is a remarkable fact, in the 
Carboniferous system in Ireland, that in the north the sandstones 
are thick, and limestone comparatively thin; while in the south the 
reverse takes place, the limestone is thick, and the sandstone thin. 
In the river at Kildress, near Cookstown, the Old Red Sandstone 
appears in the river for above a mile of its length, but there is so 
much disturbance in the strata, that a satisfactory section, as to 
thickness, could not be made. It probably exceeds 1000 feet. A 
