Skip to main content

Features

The Mosque in the Champ de Mars, Paris

Science Familiarly Illustrated

Aluminum--Its Properties and Uses

Editorial Summary

Manufacturing, Mining, and Railroad Items

New Publications

Recent American and Foreign Patents

Answers to Correspondents

Packer's Patent Broom Head

American Institute Fair

Importance of Accuracy in Tools

The Habitual Carelessness of Mechanics

Experiments with an Electric Light at the Battery

Official Report of Patents and Claims

Pending Applications for Reissues

Departments

  • Business and Personal

  • Departments

    Correspondence

Purchase To Read More

Already purchased this issue? Sign In to Access
Select Format
November 09, 1867

Beyond XX and XY

Biology. Identity. Equality.