EnvironmentAugust 1, 1924
Coal Piles that Light Themselves
Facts and Fallacies Regarding the Spontaneous Ignition of Stored Bituminous
Stories by J. F. Springer
EnvironmentJune 1, 1924
Studying Fire Risks from Sample Fires
How the Behavior of Columns and Beams Under Exposure to Conflagrations Is Determined in the Laboratory
TechnologyDecember 1, 1923
Some Great Dredges
Monster Grab-Buckets that are Able to take Fifty Tons of Mud and Rock at a Single Bite
The SciencesJuly 1, 1923
Sawing Stones With Man-Made Stones
How Abrasives are Employed in Cutting and Shaping Marble and Granite for Building Purposes
EnvironmentMarch 1, 1923
Digging from Below, Up
A Dam-Construction Problem Involving a Deep and Narrow Trench in Treacherous Ground
The SciencesFebruary 1, 1923
A Mechanical Solution of a Literary Problem
An Explanation for the Divergent Sequence of Events in the Gospels of Matthew and Mark
The SciencesMarch 1, 1922
Moving Niagara into Canada
The Great Power Canal That Carries the Lake Erie Waters to the Edge of the Bluff at Queenston
Space & PhysicsJanuary 1, 1922
Comets that have Lost their Tails
Curious Irregularities Revealed by the Camera in these Attenuated Streamers
TechnologyDecember 1, 1921
The Mechanism of the Pipe Organ
What Happens When the Player Passes His Fingers Over the Keys
EnvironmentNovember 1, 1921
Making the Flood Dam Itself
A Simple Wire Netting Structure That Gathers Mud, Boulders and Miscellaneous Debris to Form a Barrier
The SciencesOctober 15, 1921
The Story of Cork
Where the Raw Material for Stoppers and Floats Comes from, and How it is Obtained
TechnologySeptember 17, 1921
A Problem in Levels
How the Shafts and Workings of Coal Mines Are Kept Free of Water
The SciencesAugust 13, 1921
Enemies of Timber Construction
Some of the Insects that Prey on Piles and Beams, and the Extent of their Depredations
TechnologyJuly 30, 1921
Transporting Electric Current
Modern Transmission Lines and the Manner of their Construction
Space & PhysicsJuly 16, 1921
Clusters and Nebulae
Some Startling Facts and Figures Concerning These Interesting Astronomical Features
The SciencesJune 25, 1921
Canada's Great Ship Canal
The Present Status and the Ultimate Plans of the Welland Improvement
The SciencesJune 18, 1921
The Storm King Road
Space & PhysicsJune 18, 1921
The Craters of the Moon
Possible Light on Their Origin , from Experiments with Airplane Bombs at Langley Field
TechnologyJune 11, 1921
Sixty Tons Per Minute
Baltimore's New Coal Pier, and How It Makes Its Records
Space & PhysicsMay 14, 1921
Fixed Stars That Are Not Fixed
How Their Motions Are Detected by Making Them Wink at Us
EnvironmentApril 30, 1921
A City Without Water
How Winnipeg Brought the Essential Fluid 100 Miles Across a Barren Plain
TechnologyApril 16, 1921
Preventing the Roll of Ships
Past and Present Schemes for Stabilizing Ships and Why the Gyroscopic Stabilizer Is Practical
The SciencesMarch 12, 1921
The Falsework for a Big Dam
Some Unusual Trestles Employed in This Department of Concrete Construction
The SciencesFebruary 5, 1921
The Big Dam on the Little San Diego
A Multiple-Arch Structure of Unusual Height and Some of the Principles Involved in its Construction