PROCEEDINGS 
OF 
- THE GEOLOGICAL SOCIETY OF LONDON. 
Vou. Ill. Parril. - 1841. No. 80. 
June 30.—The following papers were read :— 
1. “Abrief note to accompany a series of specimens from Lockport, 
near Niagara, in the State of New York,”’ by William Jory Henwood, 
Esq., F.R.S., F.G.S. 
Mr. Henwood commences by calling attention to Mr. J. Hall’s 
Geological Reports of the fourth division of the State of New York, 
particularly to that for 1840, which contains an important stratigra- 
phical account, with lists of organic remains, of the beds near Lock- 
port (p. 452), and in which the deposit called the Lockport lime- 
stone is placed in the lowest portion of a series of beds considered 
by Mr. Hall to be the equivalents of the Wenlock limestone. Mr. 
Henwood likewise especially alludes to that geologist’s description 
of several beds classed with the Wenlock limestone of the State of 
New York, but which have no representative in Shropshire and the 
adjacent counties. 
At Lockport the strata are nearly horizontal, and are well exposed 
in a section of great length, and about 100 feet in altitude, along the 
banks of the Erie Canal. The uppermost bed Mr. Henwood believes 
to be the Lockport or Wenlock limestone; and it is succeeded in 
descending order by several other thin beds of similar or slightly va- 
rying characters, and they are all traversed by joints, the principal 
bearing about magnetic N. and 8. Organic remains are stated to 
be abundant in these limestones. 
The next subjacent formation is the Rochester shale, considered by 
Mr. Hall to be the equivalent of the Wenlock shale. It extends to 
the bottom of the section, except at a few points, and consists of beds 
of green shale abounding in organic remains, including Asaphus longi- 
caudatus ?, Homalonotus delphinocephalus, Platynotus Boltoni, Ortho- 
_ ceras annulatum ?, Conularia ?, Leptena transversalis, L. 
depressa, Terebratula aspera, Avicula striata ?, Curyocrinites ornata*. 
Beds of limestone occur in the shale at irregular intervals, but they 
contain no organic remains. 
At the few points where the cutting has penetrated the shale, a 
bed of limestone is exposed, and is stated to contain, on the autho- 
rity of Mr. Forman, who has made the fossils of the district his par- 
* The above species have been determined by specimens which Mr. Hen- 
wood presented to the Society. The Asaphus longicaudatus is distinguished 
from the fossil described by Mr. Murchison in the absence of the large pro- 
tuberance “on the anterior edge of the buckler,” Silur. Syst., p. 656. 
VOL. III. PART II. : 2Q 
