last of the large dikes of this belt (95) first appears immedi- 
ately east of the railroad, at the junetion of the conglomerate 
and underlying melaphyr, and сап be traced thence directly 
across Melaphyr Plateau, where, passing beneath the private 
road, it reappears in the eastern part of Conglomerate Plateau. 
The small dike (86) south of 35 near the railroad is, doubtless, 
a branch of the latter. 
Bast— West Dikes of the Southern Belt. 
Width 
No. Trend. Hade. in Remarks. 
feet. 
Dd Na . Nie ШОР 5? Cuts 44 and 45? 
08 |N. 70°. B. Vert.-N. 59| 6-7 Porphyritic and branched. 
89 | N. 80° E. Nr 6-10? Cuts the great melaphyr dike. 
40 | N. 88? E. Vert.-N.10?| 3.5-4.5 | Irregular. 
41 | N. 86° E. ee 4.5 Possibly unites with 40. 
42 N. 759-809 E.] N. 10° 6-7 In granite; regular. 
to | S, 80° E. N. 105 .25-.5 Very regular and continuous. 
44 S. 78° E. N. 10° 2.5-4 Ends abruptly toward the east. 
45 | S. 759-809 E. | N. ? 2? Imperfectly exposed. 
46 | S. 80° E. N. 50-100 10—12 Regular and continuous. 
Viena SO B ОЁ 6 )ranch of 44. 
48 | S. 85° E. [CUN LOS T M ide SA 
e | N. 109 5-1 „„ 
50 | S. 720 E. N. 159-20? | .5-.75 «t 1 
DI S SOT INST if Porphyritic. 
52 | S. 759-809? E. | N. 59-109 6-8 ү 
On account of the marshes, the dikes of the southern belt 
appear much less continuous than those of the central belt; 
and they present, on the whole, fewer points of interest. 
Although six dikes in this belt аге referred in the table to the 
first system, it is doubtful in several cases whether this refer- 
ence should stand. "Thus 37, on Great Hill, has the normal 
trend of the first system, but it appears to cut two small dikes 
(44 and 45) of the second system. The two systems are thus 
no longer distinct in both age and trend, as in the coastal area. 
Dike 38 has the extreme trend of the first system (N. 70° E.). 
It appears first on the west shore of Weir River Bay and can 
be traced about half-way across Granite Plateau, or until it 
— wy 
