212 LIAS OF ENGLAND AND WALES: 
beds, being rarely shown, it was difficult to mark any division in 
the Hue clays that overlie the Blue Lias limestones.* 
The following appears to be the general section of the strata, 
as illustrated by sections at Box (noted by Lonsdale), Devonshire 
Buildings, Bath (noted by the Rev. H. H. Winwood), and by the 
deep boring at Batheaston : 
FT. IN. FT. IN. 
Midford Sands. Micaceous yellow sand. 
f Ferruginous sandy and oolitic lime- 1 
| stone with nodules, Ammonites \ 
Upper Lias. -^ serpent inus, A. communis. &c. - ^3 6 to 4 6 
| Pale grey earthy limestones and | 
[_ clays - -J 
r Marlstone (? persistent) - 10 
Middle Lias I Micaceous yellow sand and clay, with 
| indurated layers - - 30 
and t Blue micaceous clays with occasional"! ,, ,,-Q Q 
T . f stone beds - - - ' 
Lower Lias. { Blue ]ias limesto nes. 
The stone-beds at the junction of Middle and Upper Lias were 
observed by Lonsdale at Batheaston, and in the descent from High 
Barrow Hill to Peunyquick Bottom, near Twerton; and by 
William Smith at Bathampton. Moore likewise noticed the beds 
at Kelston Beechen Cliff, and other places in the neighbourhood 
of Bath.t 
North of the Great Western Railway, in the lane leading from 
Box to Hill House, blue and brown micaceous and marly clays 
were exposed in a road-cutting ; ochreous nodules occurred in the 
upper part, but no fossils were to be seen. Hill House is situated 
on Inferior Oolite (with Rhi/nchonclla spinosa, &c.). 
The principal section exposed in this region, is that at Oak's 
Lane, Upton Cheney, near Bitton, which was noted by Moore : 
FT. IN. 
TT j . /About 12 beds with numerous specimens of 
Upper l^ias. it sernim - - 
Middle 
and 
Ammonites serpentimts - - 12 
Marlstone ? - - - 1 
Grey and reddish-brown marls with nodules 
and bands of ironstone, and occasional 
layers with Pecten - - - 144 5 
j - - - 
Lower? Lias, \ Blue-hearted stone - 7 
155ft. Sin. Shelly marlstone - - - 4 
j Grey marls - - - - 8 
[_Blue micaceous stone - - 1 4 
Moore records from the beds below the Upper Lias, Bclemnitcs, 
Gryph&a gigantea, &c , and Ammonites capricornus (maculatus). 
The precise horizon of the Ammonite is not indicated, but the 
occurrence is noteworthy in connexion with the record he gives of 
this species from the "marlstone" of Dundas, p. 211.J 
The evidence of Middle Lias, and more especially of the 
Marlstone in the neighbourhood of Bath, is therefore by no means 
so satisfactory as one could wish. Moreover at Dundry we fail 
* See De la Beche, Mem. Gcol. Survey, vol. i., p. 275. 
t Proc. Somerset Arch, and Nat. Hist. Soc., vol. xiii. p. 126. 
J Ibid., vol. xiii. p. 152. 
