XV111 PROCESS-BLOCKS AND OTHER ILLUSTRATIVE FIGURES. 



Fig. Page 

 3. [Real course of wave-paths through the earth] 469 



1. Map illustrating the general results of the eruption of Vesuvius 



in April, 1906 478 



2. Dust-clouds seen at noonday, April 10th, from Santa Lucia ... 480 



3. Dust-clouds seen from nearly the same point of view as fig. 2, 



on the same clay 482 



1. Pinner's-Cross Pit 493 



2. Section in the cliff north of the bathing-place, Sassnitz (Bugen). 495 



1. Sketch-map of the country between Boxford and Winterbourne 



in Berkshire 500 



2. Section on the south side of pit a, about a quarter of a mile 



north-west of Winterbourne Church 502 



3. Section along the line I-I on the sketch-map (fig. 1) 510 



4. Section along the line II-II on the same map 510 



1. Plan showing line of section over a portion of the Cannock- 



Chase Coalfield 524 



2. [Vertical section, showing the position of the Lower Car- 



boniferous rocks at No. 1 Fair Oak Shaft] 527 



1. Sketch-map [of coast near Whitley, Northumberland J 532 



2. Section B at that locality 533 



3. Photograph showing the fault in the Lower Series stopping 



short at the base of the Table-Eocks Sandstone 534 



4. Section D to E 535 



5. Photograph illustrating the foregoing figure 535 



6. Section F 536 



7. Photograph illustrating the foregoing figure 536 



8. Section G 538 



9. Photograph showing the discordance of clip between the Upper 



and the Lower Series 538 



10. Photograph showing the ridge on the foreshore at J 539 



11. Sketch-plan showing the outcrop of the Mussel-Band in the 



bay near L 540 



12. Photograph illustrating a portion of PL XLII 540 



13. Diagram exhibiting the relationship in composition betwee' 1 



the weathered and the unweathered rocks 545 



