34 The American Geologist. January, i904. 
"In its northern portion the Matawan is readily separable upon lith- 
ological grounds into Crosswicks clays and Hazlet sands.". . . . 
"In his report on the Surface Geology professor R. D. Salisbury 
states that his assistant, G. N. Knapp, distinguishes five layers in the 
Clay Marl and traced them across the state. 
"These he designates Merchantville bed (Marly clay), Woodbury 
bed (Dove-colored clay), Columbus bed (sand), Marshalltown bed 
(Marly-clay sand) and Wenonah bed (sand),".... 
"These features, although more or less marked, are not sharply de- 
fined throughout the entire area of the Matawan, and professor Clark 
has never attempted to name or map any of the subdivisions other than 
the lower clay member". .. ."The Matawan is abundantly fossiliferous, 
especially along Crosswicks and Pensauken creeks. Clark enumerates 
eighty-six species of invertebrates, and Lewis Woolman. . . .has added 
several others. ..." 
■■The exposure fronting on Raritan bay near Cliffwood, N. J., and 
forming a bluflf some thirty feet high northwest of Matawan creek, has 
been admirably described by Hollick who records obscure Crustacean 
and Molluscan remains from which professor Whitfield identified eight 
species of mollusks, and enumerates twenty-six. species of plants".... 
"I have found some few moHqscan remains here, occurring in the fer- 
ruginous concretions picked up on the beach". .. ."the flora has more 
in common with the middle (Woodbridge) stage of the Raritan than 
with the other layers of that formation, eleven of the seventeen identical 
species occurring there".... "1 am enabled to enumerate sixty-seven 
different species of plants of which fourteen are new nineteen are of 
doubtful affinities". .. ."Fifteen of the Matawan species are found in 
the Raritan of the islands, eight on Long island seven on Martha's 
Vineyard. .. .nine on Staten island." 
It is evident from these qttotations and other statements in 
the paper that the author considers the entire chff at CHffwood 
one formation which yields a fauna hke the Crosswicks clays 
fauna and the flora under consideration. 
He regards the fauna and flora as belonging to Alatawan, 
but recognizes that the fauna is like the Crosswicks clays fauna 
and the flora more like the Raritan flora. 
One would think that such an assemblage would have sug- 
gested a closer study of the cliff to see if the fauna did not come 
from one horizon and the flora from another, in short to see if 
part of the cliff was not Clay Alarl and part Raritan. 
Apparently there was no attempt to verify the correctness 
of the correlation of the Cliif wood clays with the ]\Iatawan : 
it was taken for granted apparently that the whole was Mata- 
wan. 
