282 LTAS OP ENGLAND AND WALES : 
Here, as noticed by Prof. Judd, the Serpentinus-beds are ferru- 
ginous and much resemble the Marlstone, with which, in the 
absence of fossil-evidence, they might be confounded. At the 
Market Harborough brickyard, the " Fish and Insect limestones " 
were not detected. In the cutting just north of Market 
Harborough station, the Serpentinus-beds were well exposed, and 
were seen to be crowded with the usual fossils.* Pyrites was said 
to be plentiful in most of the wells at Great Bowden.f 
Records of other sections in this neighbourhood are given by 
Prof. Judd. The Basement Beds of the Upper Lias were well 
exposed at Alexton, and a number of fossils were obtained. 
In the clays large masses of wood, converted into jet, are found. 
These, after being soaked in oil to prevent cracking, are used by 
the workmen and others for whetting razors. The limestone, 
which is hard and fissile, and of a blue colour weathering white, 
occurring sometimes in continuous bands and at other times in 
nodules, is carried to Tugby, where it is burnt for lime. Prof. 
Judd remarks that the Serpentinus-bed, which in many places 
is ferruginous, is at Alexton only very slightly coloured with 
oxide of iron. 
Other sections showing the IS Communis Beds " have been opened 
up near Neville Holt, where Prof. Judd obtained Posidonomya 
Bronni ; also at Tugby brickyard, and in the railway-cuttings 
near Manton, and between Oakham and Ashwell. 
The Unfossiliferous clays, which contain ironstone -nodules 
(decomposed iron-pyrites), have been exposed in a brickyard at 
Great Easton, in the cuttings and tunnel at Morcot (together 
with higher beds), in brickyards west of Oakham, and on Moor 
Hill, north of Bbllaton. On Moor Hill the thickness of these 
clays must be 50 or 60 feet. At West Laund, near Til ton, there 
is a brickyard showing blue shaly clay, with many small nodules 
and selenue, apparently belonging to the Unfossiliferous division 
of the Upper Lias. 
More interest attaches to the Leda-ovum Beds. They have 
been exposed in the brickyard at Stanion, where there is an in- 
lier of Upper Lias ; in brickyards between Rockuigham and 
Cottingham, and at Gretton. Inliers also occur at Pipwell Abbey, 
Corby, &c. 
A number of fossils are also recorded by Messrs. E. Wilson and 
W. D. Crick, from the grey clays in the East Norton railway- 
cutting ; these include Ammonites bifrons, A. communis, A. 
crassus, Belemnites subtenuis, Nucula Hammeri, &c.J 
At a brickyard and tilery by Seaton railway-station, about 
12 feet of grey or blue clay with small nodules of argillaceous 
limestone, covered by about 5 feet of brown Alluvial loam, were 
exposed : the clay yielded the following fossils some of which 
* Geol. Rutland, p. 87. 
t J. Woodward, Nat. Hist. Foss. Eng., Part I., p. 18i. 
j Geol. Mag., 1889, p. 298. 
