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Features

Aids to the Art of Drawing

Millers and their Men

Photographic Engraving

By J. Waterhouse

Pneumatic Photographic -Shutter

By W. Barry

An Improved Camera Lucida

How to make a Camera Lucida in Ten Minutes

A Horse's Motion Scientifically Considered

Cements

The Royal Society

Thomas Grubb, F.R.S

Fireproof Paper and Ink for Documents

Aluminum at the Paris Exhibition

Recent Arctic Explorations

Galvanic Batteries

By Geo. M. Hopkins

Actual Costs of using Electric Lights

The Divisibility of the Electric Light

Outlines of Chemistry

By Henry M. Mcintire

Ammonium Nitrate

By Spencer Pickering

H.M.S. Northampton

Steam for small Boats

Artesian Wells

Rotary Condenser and Feed Water Heater

Peruvian Antiquities

By E. R. Heath

Departments

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    January 11, 1879

    Help Us Reforest the Mississippi River Valley