( 6 ) 
with all the headlands south of it. I shall have to ask you first 
to accompany me in thought as I outline on the map the bounda¬ 
ries of the different kinds of rocks in our vicinity, with many of 
which you doubtless already possess some acquaintance. We 
will begin in Newport itself. It is well known that coal seams 
exist under the City. They have been struck in digging wells 
and they used to crop out near Sheep Point on the Cliffs. Coal 
plants have been found near the corner of Marlborough and Fare¬ 
well Streets and in several places along the Cliffs. The slates 
and fine conglomerates associated with these fossiliferous and car¬ 
boniferous strata extend from Sheep Point on the south, to Almy’s 
pond, Emmanuel Chapel (corner Spring and Perry Streets) and 
Fort Greene on the west, to Coddington Point and Bishop Rock 
on the north, and to Bliss cave, Easton’s Beach and the Cliffs on 
the east. In the vicinity of Taggart’s Ferry, Wood’s Castle, at 
the Glen, and on the east shore of the east passage between High 
Hill and Brown’s Point, we find other patches of these beds. 
On the west, the same group recurs at Beaver Head and Dutch 
Island, although in a more crystalline condition, the coal having 
there become graphite and the clay slate a mica schist containing 
garnets. The vertical thickness of this series is about 2000 feet. 
At the end of “the Cliffs” you will have noticed some very 
jagged greenish rocks which recur at the east end of Bailey’s 
Beach, forming apparently a belt from that place to the Cliffs ; 
these rocks are chlorite schist, talcose schist, epidote, and prob¬ 
ably serpentine. The marked peculiarity of these different min¬ 
erals is that they contain a considerable percentage of magnesia, 
and one of them, the epidote, some 23 per cent, of lime. 
The only other place where similar rocks occur is on Conanicut 
near the S. E. corner of the island and also most of the Dump¬ 
ling Islets. There, however, the chlorite schist contains passages 
of calcite and a little mica, corresponding exactly to some of the 
Paradise rocks, and suggesting the possibility that they were- de¬ 
posited at the same time. We may therefore perhaps venture to 
classify the alternating beds of hornblende and chlorite schist, 
and mica schist (traversed by veins of zoisite which is related to 
epidote,) which form the three central ridges of Paradise, in the 
same series, and indicate it on the map with the same color. 
