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Scientific American Magazine Vol 13 Issue 25

Scientific American Magazine

Volume 13, Issue 25

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Features

Pump Valve

The Deepest Well in The World

Artesian Wells in California

Witting's Improved Cotton Press

More Sorgho Sugar

Nitrogen—Its Utility

Improved Ironing Table

Drawing Cotton, Etc.

Patent Rights and the Lobby at Washington

Improved Elastic Railroads

Daniel's Improved Water Wheel

Improvements in Fire-Arms

Lap-Welded Iron Tubes

Paine's Wonderful New Discovery

Forty-three Millions

The American Patent System

Salt for Plum Trees

The “Leviathan” Afloat

Abstract of the New Patent Bill

Improved Coin Balance

Mechanics

Special Legislation on Patents

Heich's Egg-Beater

Artificial White Light

Science in Sport

Departments

Correspondents - February 27, 1858