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A Mechanical Curiosity

By C. W. MacCord

Flour Dust


The Rudder Power of Steamships

By Robert Clark

Sail Boat with Roller Center Board

The Grosser Kurfürst

Therapeutic Machinery at the Paris Exhibition

The United States Building at the Paris Exhibition


By J. R. Johnson

How to Test and Work Silver Ores

The Dusting-On Process

By Julius Schnauss

M. Michaud's Photo-Engraving Process

Manufacture, Properties, and uses of Dyestuffs

A New Substratum

By Henry Cooper

Vision of Colors

By E. Chevreul

Restoring Faded Writings and Paintings

Champagne Liqueured with Honey

New Discharge on Indigo Blue

By Oscar Schuerer

The Influence of Glycerine on the Fixation of Indigo

By M. Prudhomme

The Moderator Electric Light


Industrial Application of Solar Heat

By M. Mouchot

The Surgeon's Duty

By M. Verneuil

Sciatica and Nerve-Stretching

Sleeplessness—Its Causes and Cure

By James Sawyer

Curare in Epilepsy

By C. F. Kunze

Tartrate of Lime

By A. Scheurer-Kestner

Color-Comparator for Quantitative Analyses

By Albert R. Leeds

On Color

Dynamite in Agriculture


Fodder Corn


By Peter Henderson

Problem Solving

Solutions to Problems

Caxton's “Game of Chesse”

Joseph Alonzo Potter, of Salem, Mass

The Association Letter Tournament

Charleston Courier Problem Tournament of 1859



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