LIST OF ILLUSTRATIONS.
 

FRONTISPIECE. Yiew in the North-western Highlands of Scotland (geologically
coloured), showing how the Laurentian Rocks are there surmounted by Cambrian
and Silurian Rocks.

^ABULAR DIAGRAM of the comparative development of the Silurian Rocks in
different parts of Wales, by Mr. Talbot Aveline (see p. 142).

EOLOGICAL MAP of the Silurian Rocks and overlying Formations in Wales and
the Border Counties ; with a General Section of the Rocks from Snowdon to Wen-
 

s
 

lock Edge.   {End of Volume.)
 

WOODCUTS.

Page

ossils (1) . Eozoon Canadense.................    13

jction  .    . General Order of the Primeval Rocks...........    24

cetch   .    . The Longmynd..................    25

jction  .    . From the Longmynd on the E.S.E. across the Stiper Stones to Shelve

and Cornden on the W.N.W.............    26

ossils (2) . Burrows of Annelides allied to Arenicola, and Palseopyge Ramsayi   .    28

ossils (3) . Oldhamia antiqua, from Carrick MacReilly, Ireland       .....    30

fetch    .    . Pass of Llanberis from the Lower Lake..........    30

jction .    . Bedding and Slaty Cleavage..............    32

ketch    .    . Contorted Crystalline Schists at the South Stack Lighthouse, Anglesea    35
3ction .    . Showing the Relations of the Lower Silurian Rocks in the West of

Shropshire...................    38

fetch   .    . Eastern face of the Stiper Stones............    39

teteh   .    . Western face of the Stiper Stones............    39

ossils (4) . Annelide-burrows in the Stiper Stones...........    40

> General Arrangement of Rocks between Cader Idris and the flank of

Snowdon.............,.....    41

, Conformable Passage from the Cambrian Rocks to the Lingula-flags

at Barmouth..................    42

Fossils (5) . From the Lingula-flags, North Wales...........    43

Fossils (6) . From the Lingula-flags, North Wales...........    44

Fossils (7) . From the Black Schists of the Malverns..........    45

Fossils (8) . From the Upper part of the Lingula-flags, North Wales     ....    46

Fossils (9) . From the West side of the Stiper Stones..........    48

Sketch   .    . Lower Silurian tract west of the Stiper Stones (Shelve, &c.)     ...    49

Fossils (10). From the Lower Llandeilo Rocks of North Wales......    51

Fossils (11). Characteristic Fossils of the Llandeilo Flags........    51

Section  .    . Lower Silurian Rocks in Abereiddy Bay..........    53

Section  .    . Llandeilo Schists in Musclewick Bay...........    53

Section  .    . At Llandewi Felfry, Pembrokeshire...........    54

Sketch   .    . From Dynevor Park, Llandeilo, looking to the Hills above Golden

Grove    .    .    .   r................    54
 

/3ction
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