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The Severn Bridge

Small Steam Launch

Light Draught Stern Wheel Steam Yacht

The Fracture of Cast Iron

The “Boston Pacific”

Apparatus for Hot Pressing

The Guns of the Future

The Porosity of Building Materials

Mosaic Pavement in Cork Cathedral

Improved Soil Pipe Ventilator

Small Conservatories

Photography Applied to the Ornamentation of Glasses and Mirrors

Malleable Nickel and Cobalt

Leclerc's Process for Silvering Glass

The Height and Span of the Japanese

Still Another Letter Copying Process

Pearl Inlaying on Iron

The Statue of Galvani at Bologna

The Keeping of Gelatine Emulsion

The Lace Manufacture of Calais

Why Does Steel Harden?

By William Metcalf

Dynamo-Electric Machines

Hydrostatic Balance

The Electric Light

Simple Mercurial Air-Pump

By M. Hopkins

New Luminous Tubes

The Theater Praxinoscope

Edmund Halley: His Life and Work

The Solar Eclipse of Jan. 11, 1880

Constipation Viewed as a Disease Per Se, and as an Exciting Cause of Disease

By Robert Bell

The Hereditary Effect of Extirpation of the Spleen

The Decay of the Emotions

On the Artificial Formation of the Diamond

Preliminary Notice

By J. B. Hannay

Burns and Scalds

Albuminate of Iron—Its Preparation and Use

By Dr.W. Donitz

The Odor of the Soul—German Philosophy

Treatment of Horses' Legs

A New Class of Roses

Action of Watery Vapor on Carbon at Different Temperatures

By C. G. Dahlerus

Analogy between Fluidity and Galvanic Conductivity

New Process for Electrotyping Nonconducting Materials


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    April 17, 1880

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