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Instruments and Methods of the Ocean Magnetic Work of the Carnegie Institution of Washington

The General Principles Followed.

By L. A. Bauer

Weighing the Earth

Positive Colors

The Artificial Silk Industry.—II

Converting Wood into Silken Fabric.

By W. P. Dreaper

Wright vs. Paulhan

Extracts From Affidavits And Judge Hand's Decision In The Case Of The Farman And Bleriot Aeroplanes.

Counting Particles Smaller than Atoms

The Number of Particles Projected by Cathodes. By the Berlin Correspondent of the Scientific American.

Enormous Locomotives

The Two New Mallet Engines in English Eyes.

Velocity of Explosion of Gaseous Mixtures

The Sad-Iron as a Disinfector

How it Sterilizes Linen.

By K. Svehla

Water-Glass Cements

New Investigation of the Rainbow

Correspondence

Halley's Comet as seen from the Earth

The Position of the Comet.

By P. H. Cowell

Recent Studies of Mars

Has the Climate of North Africa Changed since the Roman Period?

How the Flora Bust was Studied

The Colors of the Bust in the Berlin Museum.

By E. Raehlmann

The New Canals of Mars

Recent Discoveries at Flagstaff.

By Percival Lowell

A New Application of Alternating Currents of High Tension

Polonium

Some Newly Discovered Properties.

By Mdme. P. Curie and A. Debierne

Engineering Notes

Science Notes

Trade Notes and Formulæ

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    March 19, 1910

    Think Outside the Gift Box