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The Natural History of the Jews

Decisions Relating to Patents

United States Circuit Court--Northern District of Illinois.

The Egyptian Obelisk in America

Hodson's Rotary Engine

Improved Lubricator

Improved Rotary Valve Gear

The Proposed New Bridge over the Douro

The Driving of Nails

Perspective Carriage Draughting

By Adolphus Muller

Brewing in Austria

The Native Silks of Assam

By C. G. Warnford Lock

Bethnal Green Museum, London

By F. T. Aschmann

Artists' Homes.–No. 9

Josiah Timmis Smith, C.E

Reversal of the Image

Sword vs. Lance

Climatic Changes in Asia

Pike's Peak a Volcano

New Electric Motor

By William Woodnutt Griscom

An Essay on the Natural Enemies of the Telephone

By T. D. Lockwood

Spiral Polarization

On the Limit of Planetary Stability

By Daniel Kirkwood

Combined Induction Machine

Pandermite: A New Boracic Mineral

By C. G. Warnford Lock


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    Dwindling Supply. Increasing Demand.

    Dwindling Supply. Increasing Demand.

    Solving the Water Crisis