XVI PROCESS-BLOCKS AND OTHER ILLUSTRATIVE FIGURES. 



Fig. Page 



6. Section along the base of the pitchstone-escarpment, at the 



same locality as fig. 5 60 



1. Ironstone-gravel forming beneath the sour soil of the Uplands 



plateau, seen in a railway-cutting south of G-eorge Town ... 71 



2. The Uplands plateau in the Zitzikamma, Humansdorp 72 



3. The De Vlugt plateau, looking north from Paarde Kop, across 



the Valley of the Keurbooms River 81 



1. Sketch-map of the northern part of South America, showing 



the approximate directions of the chief lines of elevation or 

 folding 90 



2. Sketch-map of the Cataracts of the Rio Madeira and the 



adjoining portions of the Beni and Mamore 94 



3. Section of twin-crystal of allanite 114 



1. Photograph of [amphibian] footprints on a slab preserved in 



the Nottingham Museum 127 



2. [Photographs of plaster casts made from similar footprints] ... 128 



Section from Froyle Down to Rye Farm, near Crondall 154 



Map of the St. Gothard Lakes 186 



1. Vertical section of the rock-succession at Ludford Lane 



(Whitcliffe Road) 203 



2. Vertical section of the succession near the footbridge, Sewage- 



Works, Ludlow 204 



3. Horizontal section in the Temeside Group, at the same locality. 206 



4. Diagrammatic section across the Teme, at Downton-Oastle 



Bridge 208 



5. Section across the Teme at Forge Bridge 210 



6. Vertical section of the Downton-Castle inlier at the same 



locality 212 



7. Vertical section in the Temeside Group at Tin-Mill Race 213 



8 . Geological map of the neigh bourh ood of Onib ury 215 



9. Vertical section in the Downton-Castle Sandstones at Onibury 



Quarry 216 



10. Vertical section in the Temeside Shales in Norton Lane 216 



1. Sectiou across Coomb Dingle 232 



2. Section across Castell Cogan 234 



3. Geological map of the country around Capel Bethesda 23ft 



