27 to 30, until It culminated on the night of July 2 in tomb 
throwing eomps rable to the earlier, more active years. 
s 
phe.se %as actun ily & multiple one, for the centra 1 and southwest 
vents were fre* uently active together, the former emitting 
a n 
bite vapors with a roar of escaping steam and the latter sending 
forth yellowish, grayish, or reddish vapors colored by ash and 
5 
scoria , 
The comparatively silent eruption that observers have grown 
to expect as a transition bets een the tubular and gaseous phases 
lasted only through July 4* From July 5 to 31 occurred an 
unusually long period of gaseous activity. The white vapors 
accompanied ty a steady steam-escape round that usually marie ttls 
phase rose invisibly to some hundreds of tsu.% meters above the 
crater, where they then condensed to for® a cumulus cloud (see 
fig. 1). Only when the relative humidity of the atmosphere was 
high, as in the afternoons and especially at darn, wss the vapor 
visible all the way down to the crater. The southwest vent and 
the long -dormant northeast vent remained inactive. 
During July the relatively fillet southwest vent exposed to 
view, its vertical-walled throat of Agglomerate. The northeast 
vent remained closed under & thickening pile of red talus, and 
faults with as much as 2 meters of displacement developed among 
the fissures that encircled it 
he central vent had opened to 
about 10 meters In diameter, exhibiting the agglomerate-walled 
throat fro® which the gaseous eruption emerged. At moments of 
diminished sound , a few ejecta were hurled out. At the end of 
July increasing amounts of yellow and white sublimates were noted 
