PEOCESS-BLOCKS AND OTHEE ILLTJSTEATIVE EIGTJEES. xvii 



FIG. PAGE 



6. Slates underlying Ordo vician shales at Oareg Onen , 621 



7,8. Sections in the Baron Hill Group, Anglesey 624 



9. Face of cliff ibid. 625 



10. Microscopic section of mylonitic seam in Tairffynnon breccia... 626 



11. Section at northern end of Bryn Poeth Quarry 627 



, 9 /Microscopic section of felspar-tuff below pisolitic ironstone, 

 1A t Bryn Poeth 627 



1. Gneisso-granitic complex, Rudha Ghoiridh, Portskerry 640 



2. Part of base of great sill, Strathy Bay 641 



o f Foliated granite and biotite-gneiss, Allt Tom na Bradh, Kin- 

 °'\ brace 644 



4 f Inclusions of hornblende-schist in foliated granite, Altiphurst, 

 \ Strathy Point 646 



5 6 J^ ns °^ g ran ^e and pegmatite in hornblende-schist, N.E. 

 ' '[ corner of Armadale Bay 647 



1. Seismical map of the British Isles 654 



2. Seismical map of Assam 657 



3. Seismical map of New Zealand 660 



4. Seismical map of Australia and Tasmania 662 



5. Seismical map of British Columbia 663 



6. Seismical map of Canada, New Brunswick, and Nova Scotia... 664 

 7,8. Seismical maps of Malta and Cyprus 666 



9, 10. Seismical maps of Jamaica and British Honduras 667 



11, 12, & f Seismical maps of British Guiana, Chatham Island, and the 



13. t Bermuda Islands 668 



Diagrammatic section of Dundry Hill 695 



Geological map of Dundry Hill 715 



1. Diagram of Tromsodal terrace 722 



2. Terraces across the mouth of the Gosina River 725 



3. View on the Ukanskoe River, Kola Peninsula 727 



4. General view of the boulder-covered area, Sviatoi Nos 728 



p- f Do. do. do. neighbourhood of 

 °'X Ukanskoe River 728 



fi f Diagrammatic section of boulders in hollows, neighbourhood 



D 'l ofSviatoiNos 729 



VOL. LII. 6 



