Popular Science Monthly/Volume 7
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(Redirected from Popular Science Monthly/Volume 7/July 1875)
DR. WILLIAM WHEWELL
CONDUCTED BY E. L. Youman.
MAY, 1875, TO OCTOBER, 1875.
D. APPLETON AND COMPANY,
549 & 551 Broadway
Entered, according to Act of Congress, in the year 1875,
By D. APPLETON & CO.
In the Office of the Librarian of Congress, at Washington.