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Ancient Life in America

Mechanical Stokers and Smoke Preventers

The Steam Launch “Cinderella”

By Paddlefast

A Simple and Efficient Mechanical Movement

The First Locomotive, the Stourbridge Lion

English Railway Tunnels

On Heating Feed-Water

By J. Haug

The New Bridge over the Douro River, Portugal

Pneumatic Postal Transmission

The Wyandotte, Kansas, Gas Well

Steam Motive Power

A New Flying Machine

Portland Cement

Puydt's Project for a Canal between the Atlantic and Pacific

British Official Reports on the Philadelphia Exhibition

Valves for Gas and Other Purposes

The Foreign Fresh Meat Trade

Loom-Stopper Alarm

Tests for Hemp, Jute, etc

Unsworth's Winding Doubling Machine

Designs for Brussels Carpets

Improvements in Wool Carding

Soluble Aniline Black and Grays

Arlonine Black Direct on Wool

On Dyeing Felt

Geology of the West

By J. Van Cleve Phillips

Brown Colors with Wood Extracts

New Dressing for Tissues

The Earth's Interior Density and Construction

By D. P. Blackstone

Heat Underground

Professor Tyndall on Spontaneous Generation

Bichromate of Potash as an Antiseptic

Laws Governing the Production of the Sexes

Old Age

The Vegetable Origin of Malaria


The Young Men's Christian Association Building, Philadelphia, Penn., Mr. Addison Hutton, Architect

The Size of London

Detection of Criminals by the Microscope

The American Association for the Advancement of Science

A Little Farm Well Tilled

The Rice Crop of the United States

A Prize English Farm

How Plums are Made into Prunes

Chess in Leipzig

Jacob Elson, of Philadelphia


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