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Features

Silver Gilt Plate

General Railroad Law

Detonating Silver

The Lunar Caustic

Solder for Silver

Senator Benton' Scheme for a National Highway to the Pacific

Railroad to the Pacific

Nitric Solution of Silver

Goshon's Improved Smut Machine

Railroad Experiment

Works on Science and Art Proceedings of the American Association for the Advancement of Science

Correspondence of the Scientific American

News from California

Congress

Calico Soirees

Playing the British National Debt

Singular Phenomenon—A Shower of Sulphur

Gold on the Yellowstone

Dr. Furman's Remedy for Stranger's Fever at the South

California Steamers and Coal

Some Causes of Disease

Origin of the Plow

Explosion of a Boiler

Curiosities of Royalty

Death of an Eminent Artist

Roads in the North-West

New Respirator and Inhaler

Improved Machine for Setting up the Bows for Covers of Wagons and Carriages

Friction Match Case

Camels for the Western Prairies

The New Art of Kerasophany

The Eclectic Bee Hive

Manufacture of Iron

Identification of Dr. Parkman's Body

New Water Filter Cooler Refrigerator and Meat Preserver

A New Discovery for Millers

Parker's Water Wheel

Curious Drugs for Producing Hallucination

Reform of the Patent Laws

The Wood-worth Patent

List of Patent Claims

Camera Lucida

Back Volumes Scientific American

Acetate of Silver

Potatoes

To Inventors and Mechanics

A Singular Cure of Disease in the Spine

Tanning—Practical Remarks

History of Propellers and Steam Navigation

Evaporation from the Thames

Cure for a Ringworm

To Drive Away Rats

The Works of Science

Sulphate of Silver

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    To Correspondents

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April 13, 1850