224 The American Geologist. Marcii.isi; 
J.J.Stevenson. " Notes on the Geology of the Bermudas." After 
deseribins: the several types of rock deposits and their relations, as well 
as the surface features of the area. Prof. Stevenson offered the following 
conclusions respecting the successive conditions: 
First: The limestone, or "base rock" of the island, was formed by 
accumulation of dune sand. During a jjrolonged period of quiet, the 
rock underwent great erosion, both surface and subterranean; the col- 
laj)sing oi' cavern roofs caused great "sinks," soine of which, no doubt, 
still exist as such, though to distinguish them from those of later origin 
would be dithenlt. 
Seroiid : A period of subsidence followed, during which the land sank 
120 feet or more. Marine deposits encroached upon the land, intruding 
inland through valleys, thus giving beach rock at widely separated lo- 
calities and in somewhat anomalous positions. 
Third : Succeeding this was a period of quiet, during which the sand- 
stone was formed, at the limestone had been, l)y accumulation of dune 
sand, and the great "sinks" were filled up, as the basins of Castle har- 
bor are now filling. 
Fourth : A period of elevation followed, during which the land must 
have ri.sen to at least its former level. The old subtenanean drainage 
systems must have been re established in many instances, and the for- 
mer depres^sions cleaned out, while new systems may have been formed, 
causing new groups of depressions. 
Fif'tli: This was succeeded by a period of subsidence, during which 
the land sank to very nearly the same position as at the maximum of 
subsidence in the previous period, the highest marine beds being now 
only a few feet above the water's edge. Tbe more important bodies of 
water began in the deeper depressions, early in the period, but they as- 
sumed their present forms, due to shore erosion, only in the later por- 
tion, when the subsidence was very slow, and evidently interrupted 
more than once by prolonged periods of quiet. The paper was illus- 
trated by the lantern. 
Arthur Hollick. "The Geological Section at Cliff wood, N. J." 
Mr. Hollick described the Cretaceous clay marl in the vicinity of 
Cliffwood, New Jersey, one of the localities where the fauna of the ho- 
rizon has V)e,en collected and the only one at which any fossil plants 
have been found. 
The strata in question are the equivalent of the Matavvan formation 
of Prof. W. R. Clark, which represents the transition from the plastic 
clays of the Raritan formation below to the greensand marl above, and, 
as may be expected, shows a commingling of fresh water, land and ma- 
rine conditions. The specimens collected consist of crustaceans, leaves, 
fruit and twigs of trees and masses of lignite. The crustaceans are too 
fragmentary for exact determination. About 15 species of moUusks 
were identified and 26 species of plants, the majority of the latter be- 
longing to the Coniferte. Of these, nine are here described as new spe- 
cies. The paper was illustrated by maps of the region, drawings of the 
specimens and the specimens themselves. J. F. Kemp, Secretary. 
