PROCESS-BLOCKS AND OTHER ILLUSTRATIVE FIGURES 

 BESIDES THOSE IN THE PLATES. 



Page 

 Fig. 1. Curve showing characteristic variation in the composition 

 of Ocean Island phosphate, with the depth from the 

 surface of the deposit To its junction with the 

 dolomilized coral 7 



2. Sketch-map of Ocean Island y 



3. Diagrammatic section of Ocean Island 10 



1. Section across the Want Cerdin Valley from north to 



south 26 



Figs. 2 & 3. Sections across the Llanwrtyd Anticline 30 



Fig. 1. Map of the lower part of the cliff, the beach, and the 



foreshore, immediately west of Cbarmouth 50 



2. Section of the lower part of the cliffs immediately west 



of Char mouth 50 



3. Disc of barytes from Bed 71e, Charinouth 88 



4. Vein of 'beef, showing structure and cone-in-cone, 



Charm outh 89 



5. Two types of simple cone-structure in ' beef ' 91 



(5. Thin section of ' beef ', Charmouth 92 



7. Sketch of single calcite-fibre, showing fusifoi ni shape and 



rhombohedral cleavage 92 



S. Element from a growing : beef-vein subjected to principal 



stresses p and q 94 



9. Vertical distribution of nodular limestone in the Lias of 



Dorset 96 



Figs. 1 & 2. Seed of Stratioies 119 



Fig. 1. Aedes protolepis (Cockerell) 144 



2. Do. do 145 



