^'4 



I'KIUN ()rKNSEL 



Fig. 20. Sotla trachyte. :■: 50. Elevation c. I 050 m. Masafuera. 



Iiytc boulder. • 30. Xic. +. Elevation about 400 m. 

 Ticrras lUancas, Masafuera. 



character as the .soihi trachyte have now been found at lower levels. Secondly, 

 Skottsbet-o reached the .siniiniit of the i.sland and was there able to establish that 

 basaltic lavas ()cciij)y tlie whole highest i)art of the island. 



The new find of a rock, closely related to the soda-trachyte from higher 

 levels, was a loose boulder at the foot of Ticrras Blancas. According to Skotts- 



