284 LIAS OF ENGLAND AND WALES : 
clay is dug at Luniby's Terra Cotta Works. A boring here is 
said to have passed through 140 feet of Upper Lias, and to have 
been carried to a depth of 500 feet in an attempt to find coal. 
The ornamental water of Burleigh Park rests on the Upper 
Lias Clay.* 
Lincolnshire. 
While in Rutlandshire and East Leicestershire the Upper Lias 
is exposed over a considerable area, extending to the neigbour- 
hood of Buckminster and Croxton Kerrial; northwards through 
Lincolnshire, the outcrop is narrower and more regular along the 
foot of the steep Oolitic escarpment. 
Its thickness was proved to be 176 feet in a boring at Ham- 
bleton, S.E. of Oakham ; and where sections have afforded 
evidence, the main divisions recognized further south have been 
followed. 
The Basement Beds have been exposed above the Marlstone at 
Scalford, where shales with flattened nodules (Fish and Insect 
limestones) have been observed, having a thickness of over 20 feet, 
in a brickyard. The usual fossils were obtained, such as Ammo- 
nites communis, A. scrpentimis, Inoceramus dubius, and Posido- 
nomya Bronni. The beds were also exposed in the railway- 
cutting east of Scalford. 
South of Grantham the Upper Lias extends a long distance 
along the base of the valley of the Witham river to North 
Witham, and follows its tributaries westwards, connecting with 
the main outcrop near Skillington, and thus isolating a large 
mass of the Lower Oolites. 
The Basement Beds were observed by Prof. Morris in excava- 
tions between Grantham and Little Ponton, by Mr. Dalton in 
the railway-cutting between Fulbeck and Leadenham, and by 
Mr. Ussher in a brickyard N.E. of Welbourn. 
A brickyard south of Grantham railway-station, showed about 
40 feet of blue clay and shale with septaria and selenite ; with 
debris of sand and ironstone (Northampton Beds) on top. 
From this brickyard the following fossils were collected at 
different times by Messrs. R. Gibbs and J. Rhodes : f 
Ammonites annulatus. 
bifrons. 
communis. 
crassus. 
falcifer. 
fibulatus. 
heterophyllus. 
Ammonites serpentinus. 
Belemnites. 
Nautilus. 
Inoceramus dubius. 
Leda ovum. 
Posidonomya Bronni. 
Discina reflexa, &c. 
The beds were also exposed in a brickyard near Stoke Roch- 
ford. 
* Judd, Geol. Kutland, p. 86. 
| Geol. S.W. Lincolnshire, pp. 44, 130. 
