230 
BULLETIN: MUSEUM OF COMPARATIVE ZOÖLOGY. 
that vieinity the narrow trough of the Norfolk Basin joins.the Narra- 
gansett Basin through the pass at Sheldonville, Mass. On the south 
7130! 
IO 
42° 15 
70°45' 
42%15' | 
42° 00' 
Al 454 
PESA 
ES 
| 
42°00" | 
| 
| 
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X \ 
i 
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Z \ i er 
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Ed 
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41°45" | 
( 
v 
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41°30" | 
d, p 
a. 
O. 
AZ): 
15 
Fig. 8.— Diagram of the Narragansett and Norfolk Basins (after Woodworth, 
Fault block at Hoppin Hill. 
c. Synclines containing coarse conglomerates 
Synclines near the border, 
Arrows indicate direction of dip. 
