ADDITIONAL COMMENTS ON THE GEOLOGY OF THE JUAN FERNANDEZ ISLANDS 65 



F\g. 22. Vesicular phyric feldspar basalt with stray phenocrysts of olivine, 

 cimen from i 420 m elevation. Masafuera. 



30, Analysed spe- 



ij. Aphyric feldspar basalt. 



El Ovalo, Masafuera. 



