565 
of Edinburgh, Session 1868 - 69 . 
it readies as far as Iceland, and perhaps Spitzbergen, before turn- 
ing south to the Norway coast, again showing, as in the Pacific, a 
difference of 40° in latitude between the same range on an east 
and west coast. From the coast of Norway, at Stavanger, this line 
of 20° range dips down into the North Sea, then rises northwards 
along the coast of Scotland to Braemar in Aberdeenshire, bends 
thence to the west and south-west to between Glasgow and Green- 
ock, then down the west coast of England by Liverpool and Chester, 
and Pembroke in South Wales, to Devonport on the coast of Corn- 
wall, then along the south coast to the Isle of Wight and the 
Channel Islands, thus enclosing the main part of Great Britain 
with a greater range than Ireland, though the central and eastern 
parts of that island have a range of nearly 20°. The difference of 
range between the south-east coast of England and the west coast 
of Ireland is nearly 10°. 
The line of 20° range then passes along the west coast of France 
and Spain, bending completely round the south-west and south 
coasts of the peninsula, through Lisbon, Cadiz, and Gibraltar into 
the Mediterranean, where it seems to form a great loop extending 
to the east nearly as far as Alexandria (21° range), touching in its 
return at Tunis, Algiers, and Oran in North Africa, and keeping 
along this coast as far as the Atlantic shores of Marocco, where it 
turns into the interior of Africa. 
The line of 30° range runs through North Africa, Arabia, and 
Southern Asia to the north of the line of 20° range, and parallel to 
it, excepting in Northern India, where it forms a curious bend 
round the high mass of the Himalaya mountains, which appear to 
have a less range than is observed in the plain to the south of 
them. Leaving the Asiatic east coast, a little to the north of 
Canton, the line of 30° range passes between the Loo-Choo Islands 
and Japan, and thence north-easterly to the American coast, which 
it reaches just to the south of the peninsula of Aliaska. It runs 
southward along the west American coast, close to the line of 20° 
range, to near the 25th parallel of north latitude in Mexico; then 
bending round, first north and then east, follows along the? coast of 
the Mexican Gulf and through the Southern States to Charleston 
on the east coast ; from this it turns north-east and north, away 
from the east coast, but in its general direction, till it reaches land 
