My experiments with volcanoesJaggar, Thomas Augustus
Science
My experiments with volcanoes
Jaggar, Thomas Augustus
Geologists -- Biography; Volcanoes
When the time came for us to return to Samoa, some of us were fortunate
enough to get a place on the Flood Brothers’ copra ship _Carisso_,
out of San Francisco. Along with the family of a Navy officer, we went
ashore at Niuatoputapu (Keppel Island) after climbing down a rope
ladder to a bobbing whale boat. We found beautiful mats, which are the
wealth of the people throughout Tonga. The village men and women who
had mats to sell were not so much interested in coins or trinkets and
merchandise as they were in the clothing we wore. I literally divested
myself of a shirt and a suit for a beautiful fringed mat ornamented
with clusters of shells, made to be given to Queen Charlotte on her
next visit. We were fortunate in reaching Samoa in good weather, but
a big storm after we got there wrought havoc with the _Tanager_
carrying astronomical photo plates and bundles of Polynesian mats which
were much damaged by sea water.
CHAPTER VI
Prophecy and Hope
“_For we know in part, and we prophesy in part._”
The fifth decade of my sixty years of geology, 1931 through 1940, was
a time of culmination at Kilauea; the ending of an eleven-year cycle
on Mauna Loa; and the introduction, in 1940, of a new Mauna Loa cycle.
This new cycle resembled strikingly the one which followed 1843 because
of the similarity of places--notably the north side of Mauna Loa toward
Humuula, followed by the northeast side toward Hilo--and the intervals
of eruption. Kilauea behaved differently in the nineteenth century,
because in 1840 it rent open the east flank to make a flood of lava
into the ocean, though afterwards it restored its lava to Halemaumau.
In 1934, on the other hand, Halemaumau went to sleep, after adding one
more extra thick filling in the bottom of Halemaumau pit in September,
when it gushed up behind wall slabs 300 feet high, cascading down the
talus in twenty-five ribbons of lava. This proved that effervescence in
a small crack can rise far above the level of the lava lake in the pit.
It made a marvelous display in early morning darkness, and the new lava
lake rose rapidly within the flatly funneling talus. This lay at thirty
degrees, so that the outward spread enlarged the lake and reached
beyond the foot of the talus.
Public-domain text, read in full here on John Shaqi.
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