XXIV 
THE ANCIENT VOLCANOES OF GREAT BRITAIN 
FIG. PAGE 
171. Columnar basalt, Pettycur, Kinglioim, Fife ...... 469 
172. Section across the Fife band of Sills ....... 473 
173. Section across the upper volcanic band of north Ayrshire. Length about four miles . 474 
174. Section showing the connection of the two volcanic bauds in Liddesdale . . 476 
175. Diagram to show the position of a mass of Upper Old Red Sandstone which has fallen 
into the gi'eat vent near Tudhope Hill, east of Mosspaul .... 476 
MAPS 
I. General map of the Volcanic districts of the British Isles . — At the eiwL of the volume. 
II. Map of the Cambrian and Silurian volcanic region of North Wales . To face p. 256 
III. Map of the Old Red Sandstone volcanic region of “ Lake Caledonia ” in Central 
Scotland and North Ireland ...... Tofacep.ZZi 
IV. Map of the Carboniferous volcanic districts of Scotland ... To face p. 476 
