ISLAND OF PALMA. 



The volcanic islands which have arisen out of the ocean have 

 assumed forms, all of which are analogous to those here described. 



Fig. 60. Plan of the island of Palma, one of the Canaries. 



Thus for example, the island of Sabrina, at the moment of its 



Fig. 61. Perspective view of Palma. 



appearance, took the form of a crater which had an opening to 



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