630 



Jaggar — Activity of Mauna Loco. 



so that it generally supported horses without their plunging 

 through the crust, but one or two of the animals went through. 

 There was perhaps the equivalent of a foot of snow on the 

 level, drifted deep into the hollows, and revealing points of 

 rocks. 



As there was no diminution of wind on the summit plateau, 

 which was reached at 12.30 p. m.. I sent the pack animals back 

 to the lower camp and all but the two packers proceeded to 



Fig. 1. 



Fig. 7. Southwest edge of Mokuaweoweo crater, Feb. 1912. J. F. Bock, 

 phot. 



the crater. It was quite impracticable to make camp in such 

 a gale, and in deep snow, with every prospect of a possible 

 storm. 



There are no l'idges to offer protection, only a waste of 

 pahoehoe and aa blanketed with snow and occasional concealed 

 crevasses. This plateau extends about four miles from the edge 

 of the crater on the east side, but the west or Kona side is the 

 actual summit of Mauna Loa and slopes off rapidly westward. 



We reached the east margin of Mokuaweoweo at 1.15 p. m. 



