DAVIS : CONTOKTIONS AT FLAMBOROUGH. 
49 
described in the proceeding's of this Society for the year 1872, 
proved that the productions of the contortions must have been a slow- 
process. He invented an apparatus for applying a regulated 
pressure which could be continued for a long- time : and with this, 
experiments were conducted on thin slabs of limestone and sandstone. 
It was found that whilst the pressure was maintained the slabs to a 
certain extent remained unbroken, but as soon as the pressure was 
removed the slabs cracked. This was in some measure remedied by 
embedding the slabs in pitch, but with this assistance only a small 
amount of curvature could be obtained without breakage. From these 
experiments it is inferred that a uniform and long-continued pressure 
is required to produce an unbroken curvature ; and strengthed the 
opinion that continuous unfractured anticlinals and synclinals are only 
formed under a considerable weight of superjacent strata. The acute 
angles at which the beds of chalk are folded in the section at Staple 
Nook, must lead to the conclusion that the pressure producing them was 
more or less continuously applied in a horizontal direction, that it ex- 
tended over a very long period, and that whilst in operation there was 
a considerable thickness of superimposed rocks above the contorted 
chalk, representing a sufficient weight to keep the compressed strata 
intact. 
ON SOME SECTIONS AT CAVE AND DEEWTON. BY EEV. E. MAULE 
COLE, M.A., ETC. 
During the construction of the Hull, Barnsley, and West Eiding 
Railway, I had, by the kindness of the engineers, every facility 
afforded me for studying the sections. I propose in the present 
paper to bring before the society a few features which struck me, 
confirming my remarks on the Wold sections. 
The new railway cuts across the various beds at rig-ht angles and 
in the short space of two miles passes from the lower lias to the chalk. 
There are three cuttings between North Cave and Drewton. In 
the first a ferruginous sandstone was exposed belonging to the 
