File:The history of the San Francisco disaster and Mount Vesuvius horror (1906) (14772692222).jpg

Identifier: historyofsanfra00bank (find matches)
Title: The history of the San Francisco disaster and Mount Vesuvius horror
Year: 1906 (1900s)
Authors: Banks, Charles Eugene, 1852-1932 Read, Opie Percival, 1852-1939
Subjects: San Francisco Earthquake and Fire, Calif., 1906 Volcanoes Fires
Publisher: (Chicago? Ill. : s.n.)
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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stone, called by sailors Hell-broth. It isseldom known at Hawaii, but the seaside volcanoesof the Mediterranean and Java produce it in enormousquantities. In color it is white or reddish like chalk.It is so light that pieces as large as a mans head willoften float for years on the ocean until the barnaclesand shell fish which attach themselves drag it to thebottom. Analyzing it we find 72% silica, 17% alumina,9% soda and potash, with 2% iron oxide. It is largely used for polishing wood, glass and metals. AfterKrakatoas terrible explosions, navigators found hun-dreds of square miles of the Indian ocean covered withit. In some waters the deposit was a foot and a halfthick, impeding the progress of the steamer. The white cinders thrown out from seaside volcanoes aremainly the dust of pumice. Experts in vulcanologytell us that pumice is the product of lava and seawater; it is a froth that forms on the top of the moltenrock, after the steam from the ocean deluges has beenforced through it.
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OB* ^5 03 be- S3 <p o b .a of O S o m «tT H eg - a< &&« . 5 . CO *J 5 HI = c o,g 5 QC rS -UJ g£ < 08 B £ Si! < M OI mg >_J ^ *-? *£: -) Eh a^° S * / THE SAN FRANCISCO DISASTER 433 Not the least useful product of Vulcans factory issulphur. Mankind use it mostly in the form of gun-powder for destroying each other. Then to compen-sate for their hard-heartedness they make a desperateeffort to restore life by using sulphur baths and sulphurvapors. To imitate the volcano in destructiveness,they use sulphur matches in burning down large citiesand other valuable properties. The mineral is used ina thousand ways in the arts and manufactures. Fromthe enormous quantities thrown out by all volcanoesone would imagine that the globes interior was a vastbrimstone laboratory. At the crater of Kilauea inHawaii, below and around its rim lie huge banks ofsulphur miles in extent, hundreds of feet deep and al-most pure. For thousands of years millions of ton

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