t 
4 
with the hissing noise of the "quota” or skyrocket that is such a prominent 
feature of Mexican fiestas, and an occasional "reaolina" or whirlwind 
spiralled up with such a rapid motion that they produced a whistling noise. 
By 10 o’clock the flow had spread over a large are®, 100 meters or more 
across. By now the flow had slowed perceptibly and its surface was al- 
ready black, except far the numerous cracks that furrowed it, but a second 
surge came, overriding the first, emitting copious white fumes and casting 
s pink snd yellow glow upon the®. 
Birring this activity of the leva, the crater gave off billowing fleecy 
black smoke columns but few explosions, much as it had during the entire day, 
dan»*-%fee-en«4f?e-day, however, during the late night activity in the crater 
increased with spasmodic strong explosions. 
t 
June 11 
A greatly changed scene was apparent next morning. The lava flow 
during the night had spread in several lobes to the base of the cerro Fari- 
cutin end had, by now ceased to flow. The smooth , velvety cover of ash, 
upon the old flow was tremendously disturbed and a high irregular ridge, 
pointing to the north had almost by miraculously appeared. At the time we 
did not realize the full significance of this and a later ridge. 
500 meters: During the day eruptions from the crater were frequent. 
It appears probable that during the night the cessation of the lave flow was 
followed by increased activity from the crater. 
» 
