Coal Required to Puddle a Ton of Iron

The “Victory” Printing Press

Friction

On Axle Breakage

Action of Burning Gunpowder on Steel

Strength of Bricks

Gas Pressure-Gauge

Steam Boiler Economy

The London “Times” on American Manufactures

Heating Feed-Water

Irwell River Bridge, Manchester, Eng

A Ball on a Jet of Air, Steam, or Water

Wool Dyeing

Why Silk Hats are Dear

A Curious New Sponge, Kallispongia

Adulteration of Cochineal

Evidences of the Age of Ice

The Temperature of the Sea

The Planet Vulcan

Colored Hail and Snow

Lecturer on Chemistry, Glasgow

Geological Time

Presidential Address Before the Liverpool Geological Society

Fermentation

How the Earth may be Destroyed

Akademie der Wissenschaften, Vienna

Fireproof Curtain

Silicotungstic Acid as a Reagent for Alkaloids

Wearing Properties of Aluminium

The Joyote of Mexico

Bacteria, and what Will Kill Them

Xanthium Spinosum

Vegetable Coloring Matters