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SA Supplements Vol 7 Issue 158supp

SA Supplements

Volume 7, Issue 158supp

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Features

Aids to the Art of Drawing

Millers and their Men

Pneumatic Photographic -Shutter

W. Barry

An Improved Camera Lucida

How to make a Camera Lucida in Ten Minutes

Photographic Engraving

J. Waterhouse

A Horse's Motion Scientifically Considered

Thomas Grubb, F.R.S

Cements

The Royal Society

Aluminum at the Paris Exhibition

Fireproof Paper and Ink for Documents

Recent Arctic Explorations

Galvanic Batteries

Geo. M. Hopkins

The Divisibility of the Electric Light

Actual Costs of using Electric Lights

Outlines of Chemistry

Henry M. Mcintire

Ammonium Nitrate

Spencer Pickering

H.M.S. Northampton

Steam for small Boats

Artesian Wells

Rotary Condenser and Feed Water Heater

Peruvian Antiquities

E. R. Heath