SA Supplements

April 1889

Volume 27, Issue 694supp

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Features

Arc Lamps and their Mechanism

Silvanus P. Thompson

The Fritsche Wheel Dynamo

Siemens' Recording Apparatus for Compact Morse Writing

Intercalating Apparatus for Portable Incandescent Lamps

Advantages of Oil as Fuel

C. N. Ransom

Acoustic Signaling Apparatus

Salt from Sea Water

George P. Merrill

The Use of Divi-Divi in Tanning Leather

E. G. Thorpe

Industrial Applications of Oxygen

Bisulphide of Carbon: Its Manufacture and Purification

Ignatius Singkr

Manufacture of Sodium, Potassium, and Metals of the Alkaline Earths

Process for Obtaining Alloys of Aluminum, and Particularly Aluminum Bronze

The Law and Photography

Morris Cooper

Manufacture of Sodium Bicarbonate

Production of Chlorine

Improvement in the Production of White Lead

Alternative Designs for First Class Battle Ships

The Tunneling of Seleucia, Syria

Light- Reflected from Magnets

The Meconium of Butterflies

A Glass of Water

A. L. Kean, E. O. Jordan

The Pampas Plume Industry

Joseph Sexton

An Esskimo Strike-A-Light from Cape Bathurst

Walter Hough