Jaggar — Activity of Mawiia Loa. 



631 



above the east end of the south lunate platform as mapped by 

 Alexander in 1885. We looked across the south half of the 

 main crater circle, which in general is much like the greater 

 crater of Kilauea, and saw a large red fountain playing continu- 

 ously in the southwest part of the crater. The fountain rose 

 from the northwest side of an oval pool of crusted pumiceous 

 lava, and back of the fountain was a huge half-cone of its own 

 building. All of this was a mile away, as though one looked 



Fig. 8. 



Fig. 8. Lava pool and fountains of Mokuaweoweo from east margin of 

 crater, Dec. 15, 1914, 1.30 p. m. The main fountain shows white with a dark 

 half-cone behind it and fume cloud above. T. A. Jaggar, phot. 



from the Volcano House of Kilauea at a fountain playing near 

 the foot of Uwekahuna bluff, the great west cliff of Kilauea 

 crater. 



The fountain played steadily to a height of about a hundred 

 feet, and its horizontal diameter was about the same. Above 

 this it sent up jets fifty feet higher, which parted into many 

 fragments, cooling through shades of cherry-red to claret-color 

 and black, and these black ejecta, instead of falling heavily, 

 floated away and fell slowly like burnt paper, showing that the 

 lava was of a very light, pumice-like quality. (Fig. S.) The 

 heights may have been greater than above stated. 



