4 
\ 
around the concentric fissures spaced 2 to 3 meters apart that 
lined the inside of the crater, from these cracks rose a color- 
t5U 2 
> r*r*ly of B, ; S. On the map 
less gas with an odor mostly of 
■-■t wh« crater (i igtj^ejiy 2) made on July 2 7* the two open vents B 
find c are shotn k y ssall concentric rings. A is the talus-covered 
site of the northeast vent, which formed t slight depression! 
E* la the site of the short-lived explosive vent seen early in 
Junej E is the saddle in the northeast inner riaj and F is the 
■-addle in the southwest rim. F was an inner- r la site until the 
slump of March 17, which destroyed the southwest outer ria that 
h£C e3rller occupied approximately the position OH. Points I, 
S, and 2738 rose during April and ley, but T, the saddle in the 
northeast outer rim, rose scarcely at all. The largest fault 
fissure on the inner north ris® of the crater is shown on the map, 
hut many other i is sure s that lined the inner crater walls at 
that time are not shown. 
ih?r renewed activity oi the crater during August was in 
striding contrast to trie comparative quiescende during July. The 
steady steam-escape noise from, the eruption grew more erratic 
on /.u-ust 2. xhe whiteness of the vapors became dirtied by a 
thin v,,il ot asn, and at night there was more Incandescence than 
*** 1 »•» A t lit icn per ie » 
tubular eruption changed abruptly during the night os’ August 
Ji~5, ushering in a tall incandescent column bearing large quanti- 
ties of ash ana bombs, but accompanied only briefly by the usual 
lo>.iu tu; ular reports. Periods of silence were noted curing the 
