8 
east, a lusty ns* vent was shooting out a. strong jefc of steam 
The latter, with a ci&a ter of k meters, »es much smaller am 
situated mu c h lower than the old northeast vent. A vertical wall 
of agglomerate kO me «rs high descended from the new vent to the 
floor of the central throat, £0 meters below the average of t 
> 
crater rim. The inner south rim shotted a great broadening inward 
toward, the center. The .growing vest peak had attained e Knife- 
edge profile, dropping steeply on both sides and built of loose, 
very fine ash. '"oae development of a new bench on the east side 
of the inner crater was noted. Abundant yellow and or nge subli- 
mates had formed on the east peak, and from very narrow fissure* 
whitish vapors smelling of S0 2 streamed out. 
In the following report on lavs activity, the Qulquichio 
boca of the Kennedy report is referred to by its older, more 
common name, which is Ahu&n . The date in line three of the second 
same 
paragraph under "Lava Flows® in the IsmsaAjt report should r ©ad 
April 3 instead of March 3. 
Of the two branches of the leva flow that emerged from the 
rejuvenated Ahu&n boss on March 17, one was 4 ciloaeters northeast 
of the cone by May fc, and 
m V'> 
othsr had almost reached the base 
of the hill of the Upper Capita. The lava stream at and mar its 
T 
•• u 
■arce had by lay 14 sunk Into & trench 2 to 4 meters deep and 
15 meters wide, along the south base oi the- cone. Five days later 
a collapse of the walls burled the still-active flow for the 
first 100 meters fro Its source. 
By May 26 part of the lave was emerging 50 meters south 
