LIST OF ILLUSTRATIONS 
XXI 
FIG. 
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7.3. 
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Section across the volcanic serie.s of Forlarsliire ...■•■ 
Section across two necks above Tillicoultry, Ocliil Hills ..... 
Section of the granite core between Merrick and Corscrine .... 
Section across the thi'ee Dirrington Laws, Berwickshire ..... 
Section of Papa Stour, Shetlands, showing sill of spherulitic felsite traversing Old Red 
Sandstone and bedded porphyrites (Messrs. Peach and Horne) .... 
Section across Korthinaviue, from Okrea Head to Skea Ness, Shetland, showing dykes 
and connected sill of granite and felsite (Messrs. Peach and Horne) 
Section at the edge of one of the bays of Lower Old Red Sandstone along the northern 
margin of Lake Caledonia, near Ochtertyre 
Craig Beinn-nan-Eun (2067 feet), east of Uam Var, Braes of Douue. Old Red Con- 
glomerate, with the truncated ends of the strata looking across into the Highlands , 
moraines of Corry Beach in the foreground ...••■ 
Section showing the top of the volcanic series at the foot of the precipice of the Red 
Head, Forfarshire 
Andesite with sandstone veiuings and overlying conglomerate. Todhead, south of 
■ Caterline, coast of Kincardineshire 
Section across the Boundary-fault of the Highlands at Glen Turrit, Perthshire . 
Section across the chain of the Sidlaw Hills near Kilspindie .... 
Section across the Eastern Ochil Hills from near Newburgh to near Auchtermuchty 
Generalized section across the heart of the Ochil Hills from Dunning on the north to 
the Fife coal-field near Saline on the south ...••• 
Diagram of the volcanic scries of the Western Ochil Hills . - . • 
View of Cnoc Gurbh, Southend, Campbeltown. A volcanic neck of Lower Old Red 
Sandstone age, about 400 yards wide in its longer diameter . . . ■ 
Section of volcanic series on beach, Southend, Campbeltown 
Section of the base of the volcanic series, Reclain, five miles south of Pomeroy . 
Section of shales and breccias at Crossna Chapel, north-east of Boyle 
Section across the north end of the Pentland Hills, from Warklaw Hill to Pentland 
Mains. Length about five miles ..••••• 
View of the lava-escarpments of Warklaw Hill, Pentland chain, from the north-west . 
Section across the Pentland Hills through North Black Hill and Scald Law. Length 
about three miles 
Section from the valley of the Gutterford Burn through Green Law and Braid Law to 
Eight-Mile Burn 
Section across the north end of the Pentland Hills, and the southern edge of the Braid 
Hill vent. Length about two miles 
Section across the northern end of the Biggar volcanic group, from Fadden Hill to 
beyond Mendick Hill 
Section across the southern part of the Biggar volcanic group from Covington to Culter 
Section from Thankerton Moor across Tinto to Lamington .... 
Section across the Dnneaton volcanic district from the head of the Duneaton Water to 
Kirklea Hill . . . • • • ' ' 
Cavernous spaces in andesite, filled in with sandstone, John o’ Groat’s Port, Turnberry, 
Ayrshire 
Section of andesites, Turnberry Castle, Ayrshire 
Lenticular form of a brecoiated andesite (shown in Fig. 96), Turnberry, Ayrshire 
Section across the volcanic area of St. Abb s Head (after Prof. J. Geikie) 
View of terraced andesite hills resting on massive conglomerate, south of Oban . 
Section of lava-escarpment at Beiun Lora, north side of mouth of Loch Etive, Argyllshire 
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