MAPS AND SECTIONS. 345 



(intrusive). The northern half of the map shows Metamorphic rocks 

 with small patches of Granite, L. Silurian, and Carboniferous rocks. 

 The southern half is mostly in U. Silurian rocks. Copper, lead, and 

 iron-pyrites deposits are indicated, also Glacial markings. The country 

 is cut up by a multitude of small faults.. E. T. H. 



Ireland. 2 Sheets of the Longitudinal Sections of the Geological 

 Survey. Scale 6 inches to a mile. 



Sheet 23. By W. A. Traill, l^o. 1, across the Moume Mountains 

 and Slieve Croob to Lough Neagh. No. 2, from Warren Point across 

 the Moume Mountains to the sea at Newcastle. General direction 

 from W.S.W. to E.N.E. Length 18 miles. 



No. 1 is continued from Sheet 22, and comprises the low ground 

 between Moira and the edge of Lough Neagh, near Derrj'more. The 

 formations shown are Bog, Alluvium, Drift, Chalk, Gravel, Grecnsand, 

 Keuper Marls, and Basalt in sheets and dykes. No. 2 shows the 

 high ground of the Mourne range, chiefly granite with patches of L. 

 Silurian. In the lower grounds N.E. and S.W. these rocks rest against 

 the flanks of the hills, and continue uninterruptedly to the ends of the 

 section. The following formations are shown — Bog, Alluvium, Drift, 

 L. Silurian (Caradoc or Bala beds), Basalt (tabular and intrusive), 

 Granite (intrusive), Felstone or Quartziferous Porphyry. 



Sheet 24. By W. A. Traill. No. 1, from Soldiers Point, at entrance 

 to Carlingford Lough, across the Mourne Mountains to the sea at New- 

 castle. General direction S.S.W. to N.N.E. ; length 16 miles. Shows 

 the Limestone at Carlingford resting on L. Silurian rocks, which in 

 turn rest on the flanks of the Moume Mountains, and are again seen 

 at the other end of the section. The formations shown are Drift, 

 Carboniferous Limestone, L. Silurian, Granite, Basalt (tabular and 

 intrusive), Felstone and Quartziferous Porphyry. No. 2, from Kil- 

 linchy across Scrabo HiU to the sea at Cultra. General direction S.S.E. 

 to N.N.W. ; length 15 miles, over comparatively low ground. The 

 following formations are shown — Alluvium, Bog, Drift, Trias (Kcuper 

 and Bunter), Permian (Magnesian Limestone), Carboniferous Lime- 

 stone, L. Silurian, Basalt (tabular and intrusive). E. T. H. 



Isle of Wight, Relievo Map of. By H. F. Brion. The geology 

 from the Geological-Survey Map. Scale (of map) 3 miles to an inch. 



Lanarkshire. 13 Sheets of the Geological- Survey Map (Scotland). 

 Scale G inches to a mile. 



Sheet 2. By James Geikie*. (Chryston and MoUinburn.) Carboni- 

 ferous Limestone, Millstone Grit, Intrusive Basaltic rocks in sheets and 

 dykes, Boulder Clay, Gravel, Alluvium, and Peat. 



Sheet 3. By James Geikie. (Greengairs.) Carboniferous Lime- 

 stone, Millstone Grit, Coal Measures with dykes of Basaltic rock, 

 Boulder Clay, Peat, Alluvium. Outcrops of many coal and ironstone 

 seams in the Coal Measures ; large dyke of Basaltic rock occupying a 

 line of fault. 



