Abstract
IN your issue of March 25 (p. 483) the writer of the critical notice of Dr. Riggenbach's pamphlet on the above propounds a statement which, if true, is of vast importance in accounting for he subsequent optical phenomena which are supposed to have been connected with the eruption. He says: “Thus the hurling into the air of 150 cubic kilometres of volcanic dust in August 1883,” &c. Whence does he deduce this enormous quantity? M. Verbeek, in his “Krakatão,” part 1, which I have carefully perused, estimates the entire volume of ejecta (chiefly based on what fell near the spot) at only 18 cubic kilometres, and as his work is the only reliable source of information regarding the eruption with which I am acquainted, I am entirely at a loss to conceive how the 18 has been suddenly magnified into 150.
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ARCHIBALD, E. “The Krakatão Dust-Glows of 1883–84”. Nature 33, 604 (1886). https://doi.org/10.1038/033604a0
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DOI: https://doi.org/10.1038/033604a0
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