1895.] Geology and Paleontology. 745 
probably also in New Jersey. Throughout their course in New Jersey 
and in New York the upper quartzites grade into the Longwood red 
shales, and these into the Helderberg limestone, constituting a series 
which overlaps the Archean, the Cambrian limestone and the Hudson 
shales. This stratigraphic relation, as well as precise lithologic similar- 
ity, served to correlate the Pine Hill and Cornwall Station areas with 
those of the Green Pond region in New Jersey. The superposition on 
the Hudson shale is unquestionable in the Cornwall region, where the 
Green Pond, Longwood, Helderberg and other series present the full 
sequence. In New Jersey there are shales underlying the conglomerate 
along the east side of Kanouse Mountain near its northern end, but it 
is not as yet demonstrated that they are Hudson in age. 
“ The estimate of the total thickness by Merrill of 600 feet in the 
Newfoundland region is considerably too great. I find that the 500 
foot cliff south of the station, on which his estimate is based, contains 
nearly 100 feet of crystalline rocks at its base, but probably a consider- 
able portion of the original thickness of sandstone was removed from its 
summit. The formation appears to attain its greatest thickness at this 
locality, for the average amount is considerably less elsewhere. 
“The name Green Pond Mountain conglomerate or series has been 
applied to the formation by Cook, Smock and others, and, although 
originally always used to include the Skunnemunk conglomerate, it is, 
I believe, an appropriate name, with proper, restriction, for the Upper 
Silurian member. The “ mountain” may be omitted to advantage, as 
Green Pond is a typical locality. It is not proposed at present to 
separate the quartzite under a distinctive name.” (Bull. Geol. Soc. 
Am., Vol. 5, 1894.) 
Notes on the Osteology of Zeuglodon cetoides.—Last Nov- 
ember Mr. Charles Schuchert of the U. S. National Museum obtained 
for that institution portions of the skeletons of two Zeuglodons. These 
have since been “developed” and the bones thus brought to light 
promise to add some points of interest to our knowledge of this interest- 
ing form. : 
The lower jaw, like that figured by Miiller, contained six molariform 
teeth, showing that the number of premolars plus molars should be 
given as five to six, and not limited to five, as in N icholson and Lydek- 
kers Manual of Paleontology. The jugals, although slender, are 
much heavier than in the toothed whales, and the hyoid was appar- 
ently like that of a Sirenian, the basihyal being rather broad and fiat- 
tened, the ceratohyal, long, curved, expanded at its distal end, and 
