SCIENTIFIC AMERICAN SUPPLEMENT NO. 821
NEW YORK, September 26, 1891
Scientific American Supplement. Vol. XXXII, No. 821.
Scientific American established 1845
Scientific American Supplement, $5 a year.
Scientific American and Supplement, $7 a year.
THE NEW LABOR EXCHANGE, PARIS.
MANUFACTURE OF ROLL TAR PAPER.
A PHYSICAL LABORATORY INDICATOR.
NEW METHOD OF EXTINGUISHING FIRES
SMOKELESS GUNPOWDER.
NOISELESSNESS.
THE CONSTRUCTION AND MAINTENANCE OF UNDERGROUND CIRCUITS.
RAILROADS TO THE CLOUDS.
THE MARCEAU.
[Continued from SUPPLEMENT, No. 820, page 13097.]
A REVIEW OF MARINE ENGINEERING DURING THE PAST DECADE.1
THE LITTLE HOUSE
THE HYGIENIC TREATMENT OF OBESITY.1
Paris, France.
STILT WALKING.
REMAINS OF A ROMAN VILLA IN ENGLAND.
[Continued from SUPPLEMENT, No. 830, page 13110.]
GUM ARABIC AND ITS MODERN SUBSTITUTES.1
MR. CAILLETET'S CRYOGEN.
METHOD OF PRODUCING ALCOHOL.
SPECTROSCOPIC DETERMINATION OF THE SENSITIVENESS OF DRY PLATES.
A New Catalogue of Value
THE SCIENTIFIC AMERICAN
Architects and Builders Edition
Building Plans and Specifications.
The Scientific American Supplement.
Useful Engineering Books
PATENTS!
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