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The Analytical Representation of Aeroplane Resistance

Fitting Equations to the Experimental Curves

By Marcel Arman*amp*gacute;aud

Taximeter Frauds

How the Driver Contrives to Cheat His Fare

Wireless-Controlled Boat

An Unmanned Craft Directed from the Shore

Matter Indestructible and Uncreatable

The Conservation of Mass

By Max Speter

Blast Furnace Smeltinǵ with Oil

The Characteristics of the Observational Sciences

A Plea for Experimentation Independent of Theory

The National Bureau of Standards and its Work

A Survey of Its Scope and Function

By S. W. Stratton

The saw and how to use it on Wood and Metal

Useful Hints for the Workshop

By M. Cole

Diamond Tools

Some Technical Uses for the Hardest of all Gems

Abrasives for Different Classes of Work

Selecting the Right Material for a Given Purpose

Swill-Fed Animals Unfit for Use

Caisson Sickness and Compressed Air—I

The Cause of the Trouble and the Rationale of Its Treatment

By Leonard Hill

Heredity in Insanity

The Mendelian Inheritance of Psychic Defects

Electrical Notes

The Abolition of Postaǵe Stamps

Enǵineerinǵ Notes


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