AND CORNWALL, AND THEIR MECHANICAL ORIGIN. 
401 
Table VII. — Joints of the Mourne and Newry Mountains, arranged according to 
azimuths and number of observations. 
Azimuth. 
Number of observations. 
45 W. of N. 
5 
30 „ 
3 
25 „ 
« 2 
20 „ 
1 
15 
9 
10 
2 
5 
3 
0 N.S. 
3 
5 E. of N. 
1 
10 „ 
1 
15 „ 
6 
20 „ 
4 • 
22 „ 
1 
25 „ 
1 
30 „ 
4 
40 „ 
2 
45 „ 
7 
40 N. of E. 
2 
35 „ 
1 
30 
3 
20 „ 
2 
15 „ 
4 
10 „ 
4 
5 „ 
1 
0 E.W. 
5 
5 S. of E. 
3 
20 „ 
1 
22 „ 
1 
25 „ 
3 
30 „ 
2 
40 „ 
2 
Total ...... 89 
The accompanying diagram (fig. 4) represents graphi- 
cally the preceding Table. 
From an examination of Table VII., it appears that 71 
per cent, of the total observations may be included in six 
systems of joints, each contained within limits of 10 °. 
1. 
Between 5 and 15 W. of N. . . . 
14 observations. 
2. 
„ 15 and 25 E. of N. . . . 
12 
3. 
„ 40 and 50 E. of N. . . . 
7 
4. 
„ 10 and 20 N. of E. . . . 
10 
5 1 
5. 
„ 5 N. of E. and 5° S. of E. 
9 
6. 
45 and 20 W. of N. . . . 
11 
55 
Fig. 4. 
6 3 or 71 per cent, of 89 observations. 
3 h 2 
