The SciencesAugust 7, 1920
The Metric System
Why We Should Measure in Meters, Grams and Liters, without Reservations
Stories by Herbert T. Wade
The SciencesMay 8, 1920
The Tools of Science
John A. Brashear--A Great Instrument-Maker and Astronomer
TechnologyFebruary 28, 1920
Weighing a Monster Locomotive, A New Aviation Instrument and more
The SciencesFebruary 28, 1920
Firing Shell into a Concrete Tank
The Experimental Water Butt at the Aberdeen Proving Ground of the United States Army
The SciencesAugust 30, 1919
The James Watt Centenary
One-Hundredth Anniversary of the Man Who Made the Steam Engine What It Is
TechnologyAugust 9, 1919
The Aberdeen Chronograph
An Improved Device for Timing the Flight of a Projectile, Developed by the Army Ordnance Department
TechnologyJuly 26, 1919
Keeping the Big Guns at the Front Effective
The Mobile Repair Shops of the U. S. Army Ordnance Department
The SciencesNovember 3, 1917
Weighing Freight Cars
How a Thin Flexible Plate does the Work of a Lever
The SciencesFebruary 24, 1917
Completing the World's Busiest Waterway
The Fourth Lock at Sault Ste. Marie
TechnologyJanuary 6, 1917
How the Car Doors of the New York Municipal Railway are Operated
The SciencesFebruary 19, 1916
Industrial Preparedness Series - February 19, 1916
Extracting Radium from American Ores
The SciencesDecember 25, 1915
The Freight Congestion at the Port of New York
Object Lesson Emphasizing our Urgent need of a Merchant Marine
The SciencesDecember 18, 1915
Radio Inspectors and their Work
How the Wireless Apparatus of a Steamer is Tested by the Government Officials
The SciencesNovember 20, 1915
Efficiency in the Household
Bringing Science to the Aid of Domestic Economy
TechnologyOctober 23, 1915
Recent Advances in Wireless Measuring Instruments
An Instrument for Determining Logarithmic Decrement of Transmitters
TechnologySeptember 11, 1915
Mechanical Equipment of the Grand Central Post Office
It Meets the Necessary Requirements for Increased Speed and Economy
TechnologyJune 12, 1915
The Westinghouse Electro-Pneumatic Air Brake on the Pennsylvania Railroad
TechnologyMay 15, 1915
Edison Submarine Boat Storage Battery
TechnologyApril 24, 1915
A New Searchlight for the United States Navy
The SciencesFebruary 13, 1915
Watching Distant Machines from a Desk, The Envelop Sealer of the Pension Office and more
The SciencesJanuary 2, 1915
The Storage and Handling of Gasoline in the Garage
A Discussion of the Various Systems in Use
The SciencesNovember 21, 1914
The World's Longest Bascule Bridge
How Two Folding Leaves of Huge Dimensions are Made to Form a Single Rigid Span
TechnologySeptember 12, 1914
Inventions New and Interesting- September 12, 1914
Simple Patent Law ; Patent Office News ; Notes on Trademarks
The SciencesAugust 8, 1914
How Yachts are Measured
Determining the Rating of a Racing Yacht for Classification and Time Allowance