Will Blood Tell?

The New Patent Bill as Passed by the Senate

American Tea

A Floating Electric Light

The License Fee as a Measure of Damages

American Industries.--No. 5

The Manufacture of Lubricene

An Improved Type Writer

A Novel Railway Trace

A New Check Row Corn Planter and Drill

The Hancock Inspirator

The Manufacture of Sewing and Floss Silk

Amateur Mechanics

Centering and Steadying

Aveling & Porter's Road and Farm Locomotive

Fire and Water Indicator

Barrel for Shipping Bottled Liquors

The Octopus at the Berlin Aquarium

Chest of Ebony

To Inventors

Communications Received

Value of Patents and How to Obtain Them

Prospectus of the Scientific American for 1879

The Most Popular Scientific Paper In the World. VOLUME XL—NEW SERIES.