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Features

Diller's Axle Box

American Submarine Explorers at Sevastopol

Painted Pails

Starch from Horse Chestnuts

Explosions in Molding

How to Cool Water

To Raise Potatoes

Recent Patented Improvements

Improved Cotton and Hay Press

Francis' Omnibus Cane

New Food for Bees

Colt's Application for Extension of Patent

Preliminary Examinations

Daniels' Patent Granular Fuel

Lightning and Gas

To Sportsmen

A Curious Freak of Nature

Decision in a Telegraphic Case

Freaks of Cold

Alloy for Medals, Small Figures, &C

Evaporative Qualities of Iron, Copper and Brass in Boilers

Foreign Summary

Laboratory—No. 2

Hard Times in Texas

Science in Sport

The Mineral Wealth of Michigan

Printing from Veneers

Mechanics

Rowe's Plumb and Level Indicator

Departments

  • Letters

    Correspondents - April 10, 1858

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April 10, 1858

Beyond XX and XY

Biology. Identity. Equality.