Appendix. € 
ACCOUNT OF HECLA, 
&c. &c. 
There is scarcely a part of this great island 
but bears the most striking marks of the effects 
of subterraneous fires, though the more dreadful 
eruptions of later years have been confined to its 
southern and eastern quarters. Not only in the 
loftiest mountains, but even in the plains and 
vallies, the remains of extinguished craters arrest 
the attention of the traveller, and the tracts of 
lava which he frequently meets with are so ex¬ 
tensive, that it not uncommonly happens that 
an Icelandic summer’s day, however consider¬ 
able its length, does not allow sufficient time 
to traverse one of them in its greatest extent. 
Among the numerous volcanoes, Hecla, from the 
