Skip to main content

Features

James B. Eads

The Fish Torpedo

The Maxim Gun

The Berthon Pontoon Bridge

Apparatus for Measuring Bridge Deflections

Limiting Numbers of Teeth

George B. Grant, Boston

Invention of the Turbine

Management of Boilers

Slag Cement

Glass

By Sydney Lupton

Improved Petroleum Burner

A Review of Recent Bleaching Processes

Construction and Operation of Dynamo Electric Motor Systems

By Stephen D. Field

The Electro-Osteotome

Electric Welding

By Elihu Thomson

Climate in its Relation to Health

Lecture I.

By G. V. Poore

Heat Conductivity of Metals

Shade and Ornamental Trees

Forced Lily of the Valley

Knights of Tyranny

Analysis of Shot

By H. Hardaway

Departments

  • Departments

    Patents - May 7, 1887

Purchase To Read More

Already purchased this issue? Sign In to Access
Select Format
May 07, 1887

Beyond XX and XY

Biology. Identity. Equality.