Scientific American Magazine Vol 42 Issue 6

Scientific American Magazine

Volume 42, Issue 6

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Features

Floating Derricks of New York Harbor

Iron Lighthouse for Mexico

Work and Wages

Cotton Size and Cotton Sizing

Making Knit Cotton Goods to Imitate Wool

Compressed Air in Coal Mining

Agricultural Inventions

Improved Portable Engines

Improved Medicine Bottle

Improvement in Jugs

Improved Animal Trap

New Egg Tongs

The Antiquity of the Spoon

On the Crystallization of Canada Balsam

Geo. M. Hopkins

New System of Ventilation

Miscellaneous Inventions

One of Nature's Gluttons

Daniel C. Beard

The Action of Light on Plants

The Industrial Uses of Fish Skins

Mechanical Inventions

Chinese Porcelain Vase

Recent Decisions Relating to Patents, Assignments, Etc.

Departments

Correspondence

New Inventions

Business and Personal

Notes and Queries

Index of Inventions

Patents