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Improvement in Looms

Playing with Lightning

The Light of the Stars

New and Improved Form of Simple Microscope

Walker's Patent Sash Fastener

An Important Question in Sociology--The Intermarriage of Relations

Natural Selection

Leghorn Straw Hats

Wanted a Substitute for Earth and Plaster Walls

Spontaneous Generation

Wanted--Light in Dark Places

The Practical Application of the Slide Valve and Link Motion to Stationary, Portable, Locomotive, and Marine Engines

Hail and Hailstorms

The Hartford Steam Boiler Inspection and Insurance Company

Interference Case--Decision of the Commissioner of Patents

Manufacturing, Mining, and Railroad Items

Editorial Summary

New Rule about Patent Office Drawings

Applications for Extension of Patents

Recent American and Foreign Patents

New Publications

Answers to Correspondents

Official List of Patents


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July 10, 1869

Science for the Modern World