Ch. VI. DISTRIBUTION OF CORAL-REEFS. 
161 
The uncoloured parts consist, first and chiefly, of 
coasts where no coral-reefs, or quite insignificant one3, 
colour it. There can be no doubt respecting Toofoa ; and Captain 
Edwards (Von Buch, p. 386) found the lava of a recent eruption 
at Amargura still smoking. Berghaus marks four active volcanos 
actually within the Friendly group ; but I do not know on what 
authority ; I may mention that Maurelle describes Latte as having 
a burnt-up appearance ; I have marked only Toofoa and Armagura. 
South of the New Hebrides lies Matthews Rock, which is described 
as an active crater in the voyage of the Astrolabe. Between it and 
the volcano on the eastern side of New Zealand lies Brimstone 
Island, which from the high temperature of the water in the crater 
may be ranked as active (Berghaus Vorbemerk, II. Lief. S. 56). 
Malte Brun, vol. xii. p. 231, says that there is a volcano near Port 
St. Vincent, in New Caledonia : I believe this to be an error, arising 
from smoke seen on the opposite coast by Cook (2nd voyage, vol. ii. 
p. 23), which smoke went out at night. The Mariana Islands, 
especially the northern ones, contain many craters (see Freycinet’s 
Hydrog. Descript.) which are not active. Von Buch, however, states 
(p. 462), on the authority of La Peyrouse, that there are no less than 
seven volcanos between these islands and Japan. Gemelli Careri 
(Churchill’s Collect, vol. iv. p. 458) says there are two active volcanos 
in lat. 23° 30' and in lat. 24° ; but I have not coloured them. From 
the statements in Beechey’s Voyage (p. 518, 4to edit.) I have coloured 
one in the northern part of the Bonin group. M. S. Julien has 
clearly made out from Chinese manuscripts not very ancient (Comptes 
Rendus, 1840, p. 832), that there are two active volcanos on the 
eastern side of Formosa. In the map appended to the first edition 
I marked an active volcano in Torres Straits, and gave my authority ; 
but Mr. Jukes informs me that there certainly is no volcano there ; 
a wooded island on fire having been mistaken for one. Mr. M’Clel- 
land (Report of Committee for Investigating Coal in India, p. 39) 
has shown that the volcanic band which passes through Barren 
Island must be extended northwards. It appears by an old chart, 
that Cheduba was once an active volcano (see also Silliman’s North 
American Journal, vol. xxxviii. p. 385). In Berghaus’ Phys. Atlas, 
1840 (No. 7 of Geological Part) a volcano on the coast of Pondi- 
cherry is said to have burst forth in 1757. Ordinaire (Hist. Nat. 
des Volcans, p. 218) says that there is one at the mouth of the 
Persian Gulf, but I have not coloured it, as he gives no particulars. 
A volcano in Amsterdam, or St. Paul’s, in the southern part of the 
