
The Metric System
Why We Should Measure in Meters, Grams and Liters, without Reservations
Why We Should Measure in Meters, Grams and Liters, without Reservations
John A. Brashear--A Great Instrument-Maker and Astronomer
The Experimental Water Butt at the Aberdeen Proving Ground of the United States Army
One-Hundredth Anniversary of the Man Who Made the Steam Engine What It Is
An Improved Device for Timing the Flight of a Projectile, Developed by the Army Ordnance Department
The Mobile Repair Shops of the U. S. Army Ordnance Department
How a Thin Flexible Plate does the Work of a Lever
The Fourth Lock at Sault Ste. Marie
Extracting Radium from American Ores
Object Lesson Emphasizing our Urgent need of a Merchant Marine
How the Wireless Apparatus of a Steamer is Tested by the Government Officials
Bringing Science to the Aid of Domestic Economy
An Instrument for Determining Logarithmic Decrement of Transmitters
It Meets the Necessary Requirements for Increased Speed and Economy
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