Reports and Proceedings. 281 
tribution of Organic Remains in some of the Upper Silurian Rocks. 
The paper related to two beds of the Upper Silurian series,—the 
Wenlock or Lower Shale, and the Lower Ludlow or Upper Shale. 
These are strata of the same lithological character, both being deep- 
sea formations; and, as far as we can judge, they were deposited 
under similar circumstances. As they are everywhere found to be 
conformable with the intervening Wenlock Limestone, and conse- 
quently with each other, they appear to form one continuous series. 
Though these beds have been repeatedly described, we are yet 
without any complete lists of the fossils of each bed. ‘The lists in 
the ‘Silurian System’ are thirty years old, and are consequently out of 
date. In these tables only two species of Trilobites are given 
for the Wenlock Shale, and for the Lower Ludlow only three, of 
which one is wrongly placed, and one common to both measures. 
There are thus only three species of Trilobites given in these two 
beds. Thirty species are now known as belonging to these formations. 
But there is a considerable difference between the fossil contents of 
the Upper and the Lower Shale. Eighteen species of Trilobites 
have been found in the Wenlock Shale. From the Lower Shale we 
have sixteen species; but of these only four species are common to both 
deposits. Collectors seem generally to have overlooked the fact 
that when we meet with a well-defined variety or sub-species, in most 
cases it is not found in the same locality as the parent species, or is 
not of the same age. 
Cork CuvieriAn Socirty.—At the last meeting of this Society 
for the Session 1864—5, held in the Library of the Royal Cork In- 
stitution, Mr. Richard Caulfield, F.S.A., President, in the chair, 
the President read the following communication on behalf of Prof. 
Hargness, F.R.S.:—A few days ago I received from an engineer- 
ing student of the College, Mr. Cotterall, fragments of bones and 
teeth recently obtained from a limestone-quarry at Middleton. 
Amongst the former I recognized a portion of the frontal bone, 
including the horn-core, of an extinct form of Bos, B. frontosus of 
Prof. Nilsson. This form seems to have been extremely rare in Great 
Britain, but there are instances of its having been obtained from 
the marls which underlie the peat-bogs of Ireland. ‘The interest 
which these bones afford induced me to visit the locality where they 
were found, to examine the circumstances under which they occur ; 
and, accompanied by Mr. Joseph Wright, on Saturday last, I had an 
opportunity of inspecting the quarry, and the nature of the deposits 
which yield the mammal remains. The quarry, which has long 
been worked, is situated immediately east of the Poor-house Farm, 
Middleton. The rock consists of the ordinary limestone of the dis- 
trict, in one part much fissured; and under this fissured portion 
there is a mass of reddish brown clay, the thickness of which cannot 
be determined, as its base is not seen. This reddish brown clay 
under the limestone is the deposit which affords the fossil bones, and 
they are scattered through it, usually in a fragmentary condition, 
in an irregular manner. Besides fragments of bones and teeth, 
