SA Supplements Vol 75 Issue 1947supp

SA Supplements

Volume 75, Issue 1947supp

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Features

The Photo-Chemistry of the Future

A Branch of the Science which Seems Destined to Rise to Great Importance

Giacomo Ciamician

An Experiment for Showing Lines of Force in an Electrostatic Field

The Size of the Finest Organic Structures

How Magnitudes beyond the Resolving Power of our Best Microscopes are Estimated

W. Stempell

Electric Drill for Watch Makers

A Great Research Laboratory of Applied Electricity

Its Development and Nature of the Work Carried on there

Christian Dantsizen

The Structure of the Atom—IV

The Physical and Chemical Properties of the Atom Explained in the Light of Modern Theory and Experiment

J. J. Thomson

Traveling through Inter-Stellar Space

What Type of Motor would you Employ?

The “Aquitania”

The Latest Addition to the Anglo-American Fleet

Commercial and Financial Aspects of Gas Manufacture—I

A Retrospect of the Development of a Great Industry

George B. Cortelyou

Power from Waste Fuel

Importance of by-Products

Stream Lines around Obstacles to Air Currents

A New Method of Obtaining Permanent Records by the Paris Correspondent of the Scientific American

Conduction of Electricity through an Insulator

P. S. Helmick

Airship Envelope Fabric

Its Manufacture and Requirements

The Waning Supply of Gasoline

And the use of Kerosene for Internal Combustion Engines

John A. Secor

The New Diesel Engine

Designed to Obtain Higher Powers from Small Cylinders

International Congress of Mining