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Medical Patents and Trade Marks

The Plattsmouth Bridge

Killing Weeds

Peterborough Cathedral

Building Concrete Walls

Work of the Sculptor

Practical Uses of Electricity

By Charles A. Young

Illuminating a Fish by Electricity

Telegraphic Transmission of Pictures

On So-Called Rusty Gold

The Herring

The Relative Food Value of Fish

The Shad Fishery

On the Formation of a Chemical Compound of Ammonia with Silver Bromide

By J. Vincent Elsden

Oleate of Mercury for the Hair

By A. Henriques De Young

Grindelia Robusta as a Remedyin Asthma

By T. M. Rochester

Alabama Coal and Iron

The Cyanamide Compounds of Succinic Acid

By H. Moller

The Gyrograph

Curious Optical Illusion

The Basic Dephosphorizing Process

American Butter in England

Interesting Postal Statistics

The Great Wall of China

City Supplies of Charcoal

Newark, New Jersey, as a Manufacturing Center

The National Wealth


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