474 
GEOLOGICAL FEATURES OF OUR GLOBE. 
be traced, one commencing with the north-eastern termina- 
tion of Asia, and ending with Mount Erebus ; the peninsula 
of Kamschatka contains ten; the Kurile Isles four; Japan 
nine ; Lieuchien one ; the Philippines six ; Barren Isle one ; 
Sulphur Isle another ; the Ladrones ten ; New Guinea three ; 
the New Hebrides four j the Friendly Isles one ; the Sunday 
Isles one ; New Zealand fully half-a-dozen, with two more 
active than the rest ; and this line terminates with Mount 
Erebus 12,000 feet high, which is ever emitting flames, as it 
commenced with Kliuchevsk, in Kamschatka, 16,512 feet in 
height ; in this line there are as many as fifty-eight volcanoes, 
but this is far from being a perfect list, as our geographical 
knowledge of the islands between Japan and the Friendly 
Isles is extremely defective. 
Another fragmentary line may be traced from Mount 
Tanaga in the Aleutian Archipelago to the Sandwich Islands, 
in which are three volcanoes : in the Society Isles and 
Marquesas two, and the Gallipagos one, in all seven. 
The Australian line commences with the Tourfan, in lat. 
43° 30' N. and Ion. 87° 11' E. ; two in the Thian-shan 
chain ; in Sumatra four ; Java fourteen, and the neighbour- 
ing isles ten, of which is Tomboro in Sumbava Island, 
whose detonations have been heard at the amazing distance 
of three hundred leagues ; excepting Maunaloa in the Sand- 
wich Isles, this is perhaps the most powerful in the world. 
The Molucca and neighbouring isles contain ten more, making 
a total of about forty known volcanoes, but as our acquaint- 
ance with the Indian seas is also very imperfect, the number 
may probably be much larger. 
The western Asiatic line has Demavend, the culminating 
point of the Elbour's chain, between the Caspian Sea and 
Plains of Persia, 21,000 feet high. The Mauritius has 
its three Salasses, and St. Paul's, The East African line 
contains Etna, Vesuvius, Stromboli, and several in the 
Grecian Archipelago, the Gibbel-Teir in the Red Sea, and 
one in Madagascar. 
The European and West African line commences with 
Jean Mayen, and eight in Iceland ; one in the Azores ; two 
