302 
At first sight the colour of the beds (No. 4) was rather 
misleading, for previous to a more minute examination with the 
hammer they seemed to be the “Sun bed” of William Smith, and 
all those below them to be the rubbly beds of the white Lias ; 
but the first blow with the hammer disclosed the absence of the 
peculiar conchoidal fracture characteristic of that bed and the fact 
that the light colour was only superficial. Having at last found the 
true position of this top bed of the white Lias (so persistent in 
our district) somewhat lower down in the section, the proper 
sequence of the beds was at once clear. We have here then 
another example of the “passage beds” between the Trias and 
the Lias, of which the following is a description. 
The cutting runs nearly east and west ; at the base close to the 
rails at the east corner was a patch of light-blue Clay of the Rheetic 
formation ; succeeding to this came a series of broken-up beds of 
rubbly white Lias (No. 1) capped by two more solid but also frac- 
tured beds of white Lias— Sun bed ”—(No. 2). The usual arena- 
ceous band which appears so constantly in all these sections resting 
on the top bed of the white Lias, and indicating a change in the 
conditions of the previous deposit, was traced in a slight sandy 
clay parting. Upon this rested a series of brown broken-up beds 
of Lower Lias (No. 3), with the two before-mentioned beds which 
had a creamy-coloured exterior (No. 4). These were succeeded by 
yellow and blue Clays (Nos. 5 and 6); bands of Rock, parted by a 
brown sand (Nos. 7, 8, 9); Clay, and Nodular Rock (10 and 11) 
to the surface debris, containing Belemnites and a small Lima. 
The bed (numbered 11) was remarkable for the rolled Phosphatic 
Pebbles which it contained. Fossils were by no means common, 
but sufficient were found to indicate the general horizons of the 
various beds. 
Lynch House Section. 
A Patch of Blue Rheetic Clays at base, succeeded by 
Ft. In. 
1, Rubbly white argillaceous beds, white Lias +.) BRO 
