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The St. Mary's Falls Canal

Two Forms of Liquefied Air

Engineering by the Ancients

A Novel Clock

Sixty Ton Crane

Improvement in Car Seats Wanted

Country Stores and Dwellings


Back Numbers

Navigable Balloons

Durability of Building Stone

A New Steam Carriage

Improved Plate Bending Machine

The Largest Elevator in the World

The Layton Art Gallery, Milwaukee, Wisconsin

American Gems and Precious Stones

Crank Pin for Steam Engines

The Chinch Bug

Constructing, Ventilating, and Cooling Cellars


A Method for the Purification of Commercial Carmine

By John S. Adriance

Cleaning out Waste Pipes

The Treatment of Frostbitten Fingers and Toes

Enameling Cast Iron Ware

Railway Electric Lights

Steel Spring Motors

The Duplex Tide Wheel

Artificial Diamonds

Indian Fish-Egg Food

Greenhouses and Conservatories

The Nutmeg Plant-Myristica

By F. L. S.

Boring for Natural Gas at Cleveland, Ohio

How Bees Predict the Weather

Eatables on Ocean Steamers

Focal Distance of Spectacle Glasses

John Henry Dallmeyer

The Architecture of a Bone

The Phylloxera in Sandy Soil

Isolating Pavilions for Contagious Diseases

The Amber and Meerschaum Industry of Austria

Waterproof Clothing

Natural Gas Fuel

The Micrometer

Metallic Plastering Surface

Milk Cooler

Show Box Cover

Testing Machines

Slovenly Reading

Ancient Roadways


Process of and Apparatus for Blocking Ice

Cost of the Great Suspension Bridge between New York and Brooklyn

Health and Education


Bradford Technical School

Hydraulic Mining to be Regulated

Improved Sand Blast Machine

The Cycloidotrope

By Geo. M. Hopkins

Automatic Pulley Turning Attachment for Lathes

M. Bartholdi in America

Power of an Ocean Wave

Improvement in the Manufacture of Mineral Wool

Draught Device for Vehicles

Underground Wires

Buoyant Propeller for Steamboats

To the Reader

Can I Obtain a Patent ?

Our First Numbers

Our Second Numbers

Art Study

Simple Photo-Enlarging Apparatus

Efflorescence on Brick Walls

The U. S. War Steamer Chicago

Hereford Cathedral

Memory versus Progress

Waiting to be Invited

The Mercuric Developer

By Henry J. Newton

Fingarry, Stirlingshire

Asphalted Jute

Agricultural Inventions

Business and Personal

Engineering Inventions

New Books and Publications

Notes and Queries

Miscellaneous Inventions

Index of Inventions


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