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Floating Bricks

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International Tract and Missionary Society · Oakland, California · Aug 12, 1886

FromSigns of the Times, Vol. 12, No. 31.

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Floating Bricks

FLOATING bricks are made of a very light silicious earth, clay being sometimes added to bind the material together. They can be made so light that they will float on water, while their strength equals that of ordinary bricks.