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The Gerner Stationary Boiler

Prof. Huxley as President of the British Association

Iron Founding—Uniting Cast Iron by “Burning-On.”

Chatelard Viaduct of the Lausanne and Friburg Railroad

James Henderson's Improvement in the Manufacture of Iron and Steel

The Canadian Patent System

The Octopod, or Brazilian Cuttle Fish

By Lucie L. Hartt

The Arsenic Eaters of Styria

Editorial Summary

The Use of Lead Water Pipes

Improvement in Blasting Charges

The Solvent Power of Water

Hard and Soft Waters

The Exhibition of the American Institute

Professor Huxley and Scientific Exclusiveness

The New Light

Manufacturing, Mining, and Railroad Items

New Publications

Pear Culture for Profit. By P. T. Quinn, Practical Horticulturist. New: York : The Tribune Association, 154 Nassau street.

Answers to Correspondents

Applications for Extension of Patents

Official List of Patents

Issued by the United States Patent Office

Recent American and Foreign Patents

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October 02, 1869

Scientific American Space & Physics