Scientific American Supplement, No. 447, July 26, 1884


SCIENTIFIC AMERICAN SUPPLEMENT NO. 447 - NEW YORK, JULY 26, 1884 - Scientific American Supplement. Vol. XVIII, No. 447. - Scientific American established 1845 - Scientific American Supplement, $5 a year. - Scientific American and Supplement, $7 a year.

IMPROVEMENTS IN THE HARBOR OF ANTWERP.

PROGRESS OF ANTWERP.

BICYCLES AND TRICYCLES.

THE CANAL IRON WORKS, LONDON.

MARINONI'S ROTARY PRINTING PRESS.

CHENOT'S ECONOMIC FILTER PRESS.

STEEL CHAINS WITHOUT WELDING.

THE BITTER SUBSTANCE OF HOPS.