196 Geological Survey. 
of the work. Mr. Van Rensselaer insisted upon the to- 
tal exclusion of every thing which savours of any theory.* 
As soon as the engravings are completed you will re- 
ceive acopy. 1 will here subjoin a few localities of mine- 
rals which | saw in the rocks adjoining the canal; begin- 
ning at the Hudson River, and proceeding we sterly 
In iransition sand rock. Anthracite, igtoul of lead, 
sulphuret of zi.c, green carbonate of copper, lamellar sul- 
phate of barytes, quartz crystals with pyramids on each 
end, brown spar, brown hornstone and pearly hornstone, 
large masses of coarse agate, stalactitic quartz, chalcedo- 
ny, and atte’ This rock crosses the canal in Flori- 
da, ten miles west of Schenectady; also in Canajoharie, 
and west of the litle falls in Herkimer county. Itfugs in 
north-east and south-west direction. 
In transition limestone. Numerous petrifactions. Biioug 
others, three distinct kinds of the trilobite, which M. 
Brongniart seems inclined to place among eepucess ani- 
mals. One of my assistants, Dr. J. Eights, found a speci- 
men which manifestly exhibits aE pesjacting stripes 
which once supported the eyes, if M Brongniart is cor- 
rect in his opinion. This rock nade Ja accompanies 
the before mentioned transition sand r 
In millstone grit. Sulphuret of ledd and sulpburet of 
zine, in a quarry in the north-west corner of Westmore- 
land, three miles south ed the canal at Rome ; also one 
mile east of Vernon villa 
In saliferous rock, or Leédlittsap red sandstone and red 
clay slate. Salt springs at frequent intervals from Vernon, to 
thirty miles west of Niagara River; a distance of about 
two hundred and thirty miles. But gypsum is no where 
associated with the salt formation in the state of ew- York, 
nor in Upper Canada, according to the received opinion. 
In ferriferous slate and sand pothes Argillaceous iron ore 
in ap uninterrupted stratum or layer, extending from near 
Little Falls to thirty miles beyond Niagara River. Or in 
other words, I feel authorized to report, “that there is a din- 
gle unbroken specimen (stratwn or bed? Ed.) of argilla- 
ceous iron ore, two hundred and fifty miles long, and from 
r. V. R. has consented to ps putting this report into the hands of 
booksellers, to be retailed at $1 50. All the money paid for it soe 2 
plied to improvements in agriculture = 
