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Scientific American, Vol. 94, No. 20 (May 19, 1906) (1906)

leaf 10

An illustration from Scientific American, Vol. 94, No. 20 (May 19, 1906), 1906, leaf 10
of Water Here Before the Earthquake. Mounds A dozen shocks Were Formed Five and Six Feet in Diameter were observed, and One Foot High. the prevailing di- rection being lasting about forty seconds; then diminishing in force from S.S.E. to for ten seconds; the second series lasting more strongly…

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