- 3 - 
Dec. 
12 - The explosions continue without ceasing, every two or three seconds. 
The column which forms in the crater is a white vapor, completely in- 
clined toward the northeast. The explosions are heavier at midday, as 
they were yesterday. At night numbers of incandescent rocks are thrown 
from the crater, some to fall at a distance of 50 meters from the base of 
the cone, and others to roll down on all the flanks of the cone to its base. 
13 - The lava does not cease its activities, the flow does not diminish 
because some vents close. The vent to the west of the hornitos augments 
the f 1 ow and makes the cascade more liquid. According to the calculations 
of Srs. Krauskopf and Gutierrez, it moves at a rate of 30 meters per minute, 
terminating a short distance from the west base of the volcano, directed 
toward the village of Paricutin 
14 - The vapor column is much inclined toward the east* Rather strong 
noises , some of xvhich resound and shake the ground* After midday a 
column of white vapor rising vertically to a height of 600 meters* In the 
afternoon a sunset tinting the high column red* In the evening quan ci- 
ties of incandescent scoria fall on the northeast , and occasionally on 
other flanks of the cone. 
15 - A heavy cloud appears at daybreak , as if it wants to rain. There 
are no noises in the crater. At 8 in the morning a column of vapor, 
slightly inclined toward the north. There are moments of 2 or 3 seconds 
when the noises cease, while the crater emits some white vapors and cauli- 
flowers. At 5 or 6 in the afternoon, regular rains in the region, 
heavier toward the southwest, lightning and thunder in the Cerro de Tan- 
citaro. In the night little scoria. The deepest noises sound like 
y 
the howling of beasts. 
1 7 ~ 
T? Braniidos’ T 
