Plate XX, 
EXPLANATION OF FiG. I. 
7. Vartwous Schists. 
6. Quartate and Quartz Sclast. 
5. Beds of Horiublande Rech or Dtiorite. 
4. Schusts. 
3. Hornblende Rock. 
2. Lumestone 
1. Quartate &c. Fic. |. KNOCKALLA 
le 
5 
Ep, 
Hittes, NORTH DONEGAL. 
1196 Feet 
FiG.2. SECTION IN THE GLEN RIVER 
Showurg Lower Slurvar schists (S) resting 
aganst an old Shelving Surface of Lan- 
rentian Granitoul Greiss (A) 
River Bed 
Fi@, 4. 
Showing 
Yv 
_ Shoulder of 
LT. Salt Moantaun 
FiG.3.SECTION At LAKE SALT. 
10006 Ft. 
To show relations of Lower Siturtan 
to Laurentian beds. 
Schasts 
PLAN OF L. SALT 
Junction of Lower Sularvan & Lauraudscan Beds 
i 
SA ay, a A 1546 feet 
i Aa 
A : ae Vi salt 
“ ++ -Mountau 
0 Jy 
+ 
VS 
4 
ee 
Om 
7 
EXPLANATION oF fFiGs. 3 & 4. 
/ 8. Quartzile Pee. 
7. Gystatline Drorue. 
6. lamestone 30-40 Feet 
5. Shales. 
4. Hornblende rock 
3. Qnarizue. 
2.Lamestone 100 Feet. 
i. Schists &¢. 
ALanurentian Gress, and 
Schast. 
Lower Stlartar Beds 
Forster & Clith, Dablan. 
