0'E.EiLLY — On Localities marked hy Earthquakes. 509 

 V. — Bari Coast-line Direction. 



VI. — Policastro-lSficastro Coast-line Direction. — The soutliem ©r 

 Calabrian part of Italy presents two coast-line directions, well marked 

 by earthquake action, the one represented by the line extending from 

 the GuK of Manfredonia south-eastwards, the other by the Yal de 

 Diano and the coast-line on to Mcastro. This one is very strongly 

 marked, and distinctly parallel to the great circle direction, south-east 

 coast of Africa or Sofala coast (No. -24). 



YII. — East Coast of England Direction. — A very remarkable coast* 

 line direction is that representing the east coast of England. It is 

 correlated with the great circle direction ISTo. 12 (Eiver St. Lawrence, 

 or southern boundary of tertiary formation, United States), by the 

 angle of 40°. 



As shown on the map it runs parallel to the east coast of Iceland, 

 traverses the Ferroe islands, parallel to the axis of the main island, 

 runs along the east coast of Hoy island in the Orkneys, touches Scot- 

 land at Kinnaird's Head, runs parallel to the east coast of England 

 from the Eirth of Eorth to the Wash ; passes at Bruges, traverses the 

 well-marked earthquake district which extends from the plateau of 

 Langres by Geneva and Savoy to Mce ; traverses Sardinia, cutting its 

 coast-line at Cagliari ; ' cuts the Tunisian coast, passes at Tunis, and 

 enters Africa proper at Jerba island in the Guli of Gades. 



That portion which extends from the plateau of Langres to K"ice 

 only partially represents an earthquake line, although Geneva, Savoy, 

 and jN^ice may be considered as constituting one ; but the parallel to 

 this coast-line represented as passing through the island of Elba pre- 

 sents a well-defined character. Thus parting from the Shetland 

 islands, it traverses the Zuider Zee at Harderwick, and marks well in 

 its extension the western boundary of the Ehine valley earthquake 

 district. The central axis of this, which may be taken as extending 

 from Gross Gerau to Stuttgard, is parallel to it. The continuation of 

 that axis, from Stuttgard southwards to the vicinity of Parma, may 

 also be taken as representing a line of earthquake action, though not 

 so distinctly marked as the more northerly portion. 



YIII. — West Coast of Africa Coast-line Direction {No. 6). — This 

 coast-line direction enters Spain at the Cabo de Gata, passes near 

 Madrid, cuts the Santander coast at Santillana, crosses the Bay of 

 Biscay, and meets the Irish coast at Cork — one of the localities in 

 Ireland, the best marked as regards frequency of occurrence of earth- 

 quakes. Its continuation northwards runs along the west coast of 

 Iceland, and practically parallel to it. As an earthquake line it is not 

 very remarkable over this extent, but there seems to be developed parallel 

 to it a line of earthquake localities, extending from Tarbes by Bordeaux 

 and Nantes on to the coast of Dorsetshire, through the Channel islands. 



