TRUE VOLCANOES. 395 



by D'Urville in January 1828. It lies eastward of the 

 southern point of New Caledonia. 



The volcano of Tinakoro* in the group of Yanikoro or 

 Santa Cruz. 



In the same archipelago of Santa Cruz, fully 80 geo- 

 graphical miles NN.W. of Tinakoro, the volcano* seen by 

 Mendana so early as 1595, rises out of the sea to a height of 

 about 213 feet (lat. 10 23' S.). Its eruptions have some- 

 times been periodical, occurring every ten minutes, and at 

 other times, as on the occasion of the expedition of D'Entre- 

 casteaux, the crater itself and the column of vapour were 

 uudistinguishable from each other. 



In the Solomon' s-group the volcano of the island of 

 Sesarga* is in a state of ignition. On the coast of Guadal- 

 canal', in this neighbourhood, and therefore also at the 

 south-east end of the long range of islands towards the 

 Vanikoro or Santa Cruz group, volcanic eruptive action 

 has likewise been observed. 



In the Ladrones, or Marian Islands, at the north end of 

 the range, which seems to have been upheaved from a meri- 

 dian fissure, Guguan,* Pagon,* and the Volcan grande of 

 Asuncion are said to be still in a state of activity. 



The direction of the coasts of the small continent of New 

 Holland, and particularly the deviation from that direction 

 seen in the east coast in 25 south latitude (between Cape Her- 

 vey and Moreton Bay), seem to be reflected in the zone of the 

 neighbouring eastern islands. The great southern island of 

 New Zealand, and the Kermadec and Tonga groups stretch 

 from the south-west to the north-east, while, on the other 

 hand, the northern portion of the north island of New Zea- 

 land (from the Bay of Plenty to Cape Oton), New Caledonia 

 and New Guinea, the New Hebrides, the Solomon's Isles, 

 New Ireland and New Britain run in a direction from south- 

 east to north-west, chiefly N. 48 W. Leopold von Buch 9 * 

 first drew attention to this relation between continental 

 masses and neighbouring islands in the Greek Archipelago 

 and the Australian Coral Sea. The islands of the latter sea, 

 too, are not deficient, as both Forster (Cook's companion) and 

 La Billardiere formerly observed, in granite and mica-slate, 



53 Ldop. von Buch, Description phys. des iles Canaries, 1836, pp. 393 

 and 403405. 



