xxii THE ANCIENT VOLCANOES OF GREAT BRITAIN 
PAGI<: 
101. Section across Strathbogie, below Rliynie, showing the position of the volcanic band . 344 
102. View of Knockfeerina, Limerick, from the north-east — a volcanic neck of Upper Old 
Red Sandstone age ......... 349 
103. Section of the volcanic zone in the Upper Old Red Sandstone, Cam of Hoy, Orkney . 351 
104. Section of the volcanic zone in the Upper Old Red Sandstone at Black Ness, Rackwick, 
Hoy 351 
105. Section across the volcanic band and its associated necks. Hoy, Orkney- . . 352 
106. Ground-plan of volcanic neck piercing the Caithness Flagstone series on the beach near 
John o’ Groat’s House ......... 353 
107. View of the escarpment of the Clyde Plateau in the Little Cumbrae, from the south-west 368 
108. A-’icw of the edge of the Volcanic Plateau south of Campbeltown, Argyllshire . . 370 
109. View of North Berwick Law from the east, a phonolite neck marking one of the chief 
vents of the Garloton Plateau. (From a photograph) ..... 371 
110. The Bass Rock, a trachytic neck belonging to the Garleton plateau, from the shore at 
Canty Bay . . . . . . . _ .372 
111. Corston Hilt— a fragment of the Mhllothian Plateau, seen from the north . 373 
112. View of Arthur Seat from Calton Hill to the north . . . .374 
113. View of Arklotou Fell, part of the Solway Plateau, from the south-west . . 370 
114. Vertical sections of the escarpment of the Clyde plateau from north-east to south-west . 384 
115. Section of Craiglockhart Hill, Edinburgh ..... 387 
116. Section of the bottom of the Midlothian Plateau, Linnhouse Water above Mid-Calder 
Oilworks . . , , . . . _ gg» 
117. Section of the top of the Midlothian Plateau in the Muriestou Water . . . 388 
118. Section of Calton Hill, Edinburgh ....... 389 
119. Cliff of tuff and agglomerate, east side of Oxroad Bay, a little east from Tantallon 
Castle, East Lothian ......... 391 
120. Section across part of the Clyde Plateau to the we.st of Bowling (reduced from Sheet 6 
of the Horizontal Sections of the Geological Survey of Scotland) . . . .392 
121. Diagram illustrating the thinning away southwards of the lavas of the Clyde Plateau 
between Largs and Ardrossan. Length about 10 miles .... 393 
122. Diagram illustrating the thinning away eastwards of the lavas of the Clyde Plateau in 
the Fintry Hills. Length about 12 miles ...... 394 
123. View of the two necks Dumgoyn and Dumfoyn, Stirlingshire, taken from the south . 395 
124. Ground-plan of Plateau-veii t.s near Strathblane, Stirlingshire, on the scale of 6 inches to 
a mile .395 
125. Ground-plans of double and triple necks in the Plateau series, on the scale of 6 inches 
to a mile . . . . . . . . . 39^ 
126. Ground-plan of tutf-neck, shore east of Dunbar ...... 393 
127. Section across the vents Dumgoyn and Dumfoyn, and the edge of the Clyde plateau above 
Strathblane, Stirlingshire ........ 400 
128. Section through the large vent of the Campsie Hills ..... 499 
129. Diagrammatic section across the central vent of the Clyde plateau in Renfrewshire . 499 
130. Section across Southern Berwickshire, to show the relation of the volcanic plateau to the 
vents lying south from it , . . . . . . , . 49]^ 
131. Section of south end of Dumbuck Hill. East of Dumbarton .... 493 
132. Section across the East Lothian plateau, to show the relative position of one of the necks 403 
133. View of Trapraiu Law from the south, a phonolite neck of the Garleton Plateau . 495 
134. Veins and dykes traversing the agglomerate and tuff of the great Renfrewshire vent . 498 
135. “ The Yellow Man,” a dyke in volcanic tuff and conglomerate on the shore a little east 
of North Berwick ......... 499 
