356 ADAMS. 



Roth, Justus. Ueber die geologische Beschaffenheit der Philippinen. Ibid, 



331-354. 

 Oebbeke, Dr. K. Beitrage zur I'etrogiapliic der Philippinen und der Palau Insel. 



Neues Jahrhuch fur Mineralogie, etc. (1881), Beilage-Band, 4.51-501. 

 Abella y Casarieco, Enrique. La Isla Biliran (Filipinas) y sus aetuales 



emanaeiones volcSnicas. Bolelin de la Comisidn del Mapa Geologico de 



Espana (1884), V, 11. Later published separately in Madrid in 188S. 

 Koto. B. On the geologic structure of the Jlalayan Archipelago. Journ. Coll. 



Sci., Tokyo (1899), V, 11. 

 Becker, George F. Report on the Geology of the Philippine Islands. Annual 



Hep. V. S. Oeol. Survey (1899-1900), Part III. 



