1893.] Geology and Paleontology. 817 
Note on an Upper Devonian Fish from Canada.—A collec- 
tion of fishes made by Mr. Jex at Campbelltown and Scaumenae Bay, 
Canada, has been recently examined by Dr. R. H. Traquair. Among 
them is a fine series of Phaneropleuron curtum Whiteaves, which 
shows clearly that the short break in the dorsal fin, which Whiteaves 
figured, but thought might be an accidental or abnormal character, is 
a natural division, and that the dorsal fin is in two distinct portions. 
Dr. Traquair feels justified in erecting the Whiteaves species into a 
new genus characterized by its double dorsal fin, and proposes for it 
the name Scaumenacia curta. (Geol. Mag., June, 1893.) 
The Diatomacea of the Triassic (?) sandstone of New 
Jersey.—W hen I first settled in Newark, New Jersey, twenty years 
ago, I went about looking at the red sandstone for Diatomacez in it; 
but did not find them. I found pieces of trunks of wood. I found 
carbonate, silicate and sulphide of copper and carbonate of lime and 
mica, and worm burrows and ripple marks but nothing else. No 
minute fossils like Diatomacez. I looked at the sandstone every now and 
then, reasoning that it was a fresh water sediment, most likely laid down 
in very shallow water, and must contain the remains of Diatomacese, if 
they existed then. I examined the sandstone at Glen Ridge, about 
two miles from the station at Bloomfield on the Montclair and Bloom- 
field branch railroad where the Glen Ridge quarry and mining com- 
pany have a quarry and are mining for copper. I examined the white 
sandstone at Forest Hill on the Greenwood Lake railroad and the old 
Schuyler copper mines at Belleville. I visited the red sandstone in 
the cutting where the Greenwood Lake railroad came through at 
Arlington just above Newark on the Passaic river. The cut is deep 
and it shows the sandstone dipping to the northwest and also a fissure 
which parted the rock in a nearly north and south direction or 
parallel to their strike. It is about five feet wide and shows rounded 
pieces of trap. This strongly indicates that the trap is not far below 
and that heat partially metamorphosed the rocks. This is one of the few 
fissures in the Triassic. The shale shows worm burrows and ripple 
marks, This would seem to point to a later instrusion than the 
Triassic of the trap. I examined the shale with acids for Diatomaceze 
but without success. At last in June of this year, 1893, I found a 
spot immediately on the Passaic river just south of the city of Passaic 
where L. H. Arden has a brick yard in operation. I found he mined 
the clay from which the brick was made close by, and I visited the clay 
pit and saw the clay in finely stratified layers about as thin as paper 
55 
