PLATE XVin. 



Microscopic textures of lavas of the BumiTiei eruption of 1471- 

 1476, the Kwan-yen eruption (Ôhira-lava) of 1749 and the 

 An-ei eruption of 1779-1781. 



Fig. 1. — Pyroxene-andesite (the gray type) from imdci- water at Cape Moyé- 



zaki, the lociility being the same as tJio Biimmel lava in PI. XVII. 



Fig. 8. See pages 16(3, 170. 

 Fig. 2. — Pyroxene-andesite of the same era from a eraterlet in Urano-maye 



on the nortJieastern coast. See pages 163, 165. 

 Fig. 3. — Micronoritie localization in the Bmnniei lava from under -water at 



Cape Omoye-zaki, tJie lava being the same as the pret'cding. See pages 



163. 165. 



Fig. 4. — Pyroxene-andesite (ang. > hyp.) of the Ohira-yama lava of 1749 



on the western slope of the South Cone. See pages 170, 171. 

 Fig. 5.' — ïlie same magnified 120 diameters. See page 170. 



Fig. 6. — Olivine-hypersthene-andesite at the lava terminus at Cape Tatsu-zaki, 

 flowed down from An-ei-zan(?) on the southern slope of the South 

 Cone. See pages 172, 174. 



Fig. 7. — Hypersthene-andesite of the An-ei era at the water's edge at Fnru- 

 sato, being a part of tlie preceding flow (p. 175). Olivine is not 

 observ^ed in this rock, Ijut is characterized by abuudant augite microlite 

 in the brown glass. See pages 172, 173, 175. 



Fig. 8. — Hypersthene-andesite of the An-ei eruption at Komen on the north- 

 eastern coast. See pages 172, 175. 



