SA Supplements

February 1887

Volume 23, Issue 581supp

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Features

A New Torpedo Boat

Sibley College Lectures.—1886-87

By the Cornell University Non-Resident Lecturers in Mechanical Engineering.” IV.-Steam Boiler Explosions.

J. M. Allen

Asphalt Masonry for Engine Beds

Electrical and Mechanical Units

Copying Drawings by Chemical Process

Robert Marshall

The Jordan Finisher, and the Manufacture of Paper

Plotting Natural Curves

Oil of Peppermint

Albert M. Todd

Boracic Acid, Borax, and their Uses

Apparatus for Obtaining the Density of Solids

Chlorine in Rain Water

Edward Kinch

Action of Manganese on the Phosphorescent Power of Calcium Carbonate

Edmond Becquerel

Soft Steel—A New Type of Fixed Converter

George Hatton

Water, in some of its Physical and Chemical Aspects

Thomas Newbigging

New Spectroscope

Crystals in Whisky

Source of the Mississippi River

The Stanley Expedition for the Relief of Emin Pasha

Astronomical Telescopes: Their Object Glasses and Reflectors

G. D. Hiscox