PROCESS-BLOCKS AND OTHER ILLUSTRATIVE FIGURES, 

 BESIDES THOSE IN THE PLATES. 



Fig. Page 



1. Contorted shales and sandstones in the sea-cliff at Broadbench 



Cove, north of Welcombe Mouth (North Devon) 8 



2. Plant-petrifactions in sandstone, from the cliffs between 



Hartland Quay and Blackpool Mill (North Devon) 21 



3. Section of badly-preserved plant-petrifactions in sandstone 



from the east side of Gauter Point (North Devon) 22 



1. Section through Rid's Hill 30 



2. Sketch-map of the outcrop of the Arngrove Stone (Bhaxetta- 



chert) 41 



1. Diagrams showing the variations in density of brine flowing 



through a block of Bath Weatherstone under various 

 pressures 93 



2. Sketch-map showing the outcrop of the Gault and sub-surface 



water-contours in the Chalk of Hertfordshire 102 



3. Sketch-map showing the outcrop of the Gault and sub-surface 



water-contours in the Chalk of Wiltshire 102 



1. Geological map of the country between Newton Abbot and 



Torquay 108 



2. Section from Great Hill through Mincent Hill near Barton ... 109 



3. Section through Yaddon and Daison Hill to the base of 



Warberry Hill 110 



4. Section through St. Marychurch and Babbacombe 110 



5. Section through Torquay, from Waldon Hill to Walls Hill, 



showing the plateaux flanking Warberry Hill 118 



<>. Map showing the plateau-areas and their probable former 



connexion across Torbay 120 



Posterior surface of a cervical vertebra of Zeuglodon WanMyni. 125 



