PLATE III. (Micropliotograplis) 



Fig. 1. — Tlie liolociystalliue part of the lava of April 1912. x70. See -p. 



81. 2)- ■ • ■ calcic bytowuite, a. . . . aiigite. 

 Fig. 2. — The hyalocrystalline part of the same, with no visible magnetite 



crystals, x 70. Seep. 81. p.... calcic bytownite, r.... rhombic 



lamella (p. 82), 9- • ■ ■ brown glass. 

 Fig. 3. — The lava of Sei^tember-October 1912, showing the gToimdmass of 



intermediate crystalhnity. x 135. See p. 81. 2>.... calcic b^^ownite, 



m .... dendritic skeletal crystal of magnetite. 

 Fig. 4. — The lava of May 1914, now making the crater-floor, x 40. See 



p. 81. p calcic bytownite, c.h clino-hypersthene. 



Rocks of the North^vestern Demolished 

 Igneous Bodies. 



Fig. 5. — Two-pyroxene-olivine-anortliite-basalt, constituting the igneous body 

 of Chigasaki (PI. VI. GA 14). x 70. See p. 89. j> . . . . anortldte, 

 o . . . . olivine. 



Fig. 6.— Ohvine-bytownite-basalt («), constituting the igneous body of Kaza- 

 haya (PL TL GA 13). x 70. See p. 92. o....oHvine. 



