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SCIENTIFIC AMERICAN

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Pacific Press Publishing Company · Oakland, California · Jun 5, 1889

FromThe American Sentinel, Vol. 4, No. 19.

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SCIENTIFIC AMERICAN

ESTABLISHED 1845
Is the oldest and most popular scientific and mechanical paper published and has the largest circulation of any paper of its class in the world. Fully illustrated. Best class of Wood Engravings. Published weekly. Send for specimen copy. Price $3 a year. Four months' trial, $1.
MUNN & CO., PUBLISHERS, 361 Broadway, N.Y.