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Features

The Eclipse Sectional Steam Boiler

A Word with the Reader, Thinker, and Writer

The Photometer Applied to Astronomy

Discoveries of Tin in Queensland

Small Pox.--Old and New Remedies

Professor Agassiz on Our Colleges

Rapid Transit in New York

The Transit of Venus

Draper and Tyndall on the Invisible Rays

To the Editor of the Scientific American:

Scientific and Practical Information

A Few Gratuitous Hints to Inventors

Cork Cutting in Spain

Our Present Knowledge of the Sun

Textile Fibers Under Microscope

Culinary Boiler

New Gyroscope Governor

Oscillating Pump

Non-Radiating Steam Engine

Decisions of the Courts

Where and How to Advertise

Patent Office Decisions

Recent American and Foreign Patents

Answers to Correspondents

Communications Received

Departments

  • Departments

    Correspondence - March 1, 1873

  • New Books and Publications - March 1, 1873

  • Business and Personal - March 1, 1873

  • Notes and Queries - March 1, 1873

  • Index of Inventions - March 1, 1873

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March 01, 1873

Beyond XX and XY

Biology. Identity. Equality.