
Coal Piles that Light Themselves
Facts and Fallacies Regarding the Spontaneous Ignition of Stored Bituminous

Coal Piles that Light Themselves
Facts and Fallacies Regarding the Spontaneous Ignition of Stored Bituminous

Studying Fire Risks from Sample Fires
How the Behavior of Columns and Beams Under Exposure to Conflagrations Is Determined in the Laboratory

Some Great Dredges
Monster Grab-Buckets that are Able to take Fifty Tons of Mud and Rock at a Single Bite

Sawing Stones With Man-Made Stones
How Abrasives are Employed in Cutting and Shaping Marble and Granite for Building Purposes

Digging from Below, Up
A Dam-Construction Problem Involving a Deep and Narrow Trench in Treacherous Ground

A Mechanical Solution of a Literary Problem
An Explanation for the Divergent Sequence of Events in the Gospels of Matthew and Mark

Moving Niagara into Canada
The Great Power Canal That Carries the Lake Erie Waters to the Edge of the Bluff at Queenston

Comets that have Lost their Tails
Curious Irregularities Revealed by the Camera in these Attenuated Streamers

The Mechanism of the Pipe Organ
What Happens When the Player Passes His Fingers Over the Keys

Making the Flood Dam Itself
A Simple Wire Netting Structure That Gathers Mud, Boulders and Miscellaneous Debris to Form a Barrier

The Story of Cork
Where the Raw Material for Stoppers and Floats Comes from, and How it is Obtained

A Problem in Levels
How the Shafts and Workings of Coal Mines Are Kept Free of Water

Enemies of Timber Construction
Some of the Insects that Prey on Piles and Beams, and the Extent of their Depredations

Transporting Electric Current
Modern Transmission Lines and the Manner of their Construction

Clusters and Nebulae
Some Startling Facts and Figures Concerning These Interesting Astronomical Features

Canada's Great Ship Canal
The Present Status and the Ultimate Plans of the Welland Improvement

The Storm King Road

The Craters of the Moon
Possible Light on Their Origin , from Experiments with Airplane Bombs at Langley Field

Sixty Tons Per Minute
Baltimore's New Coal Pier, and How It Makes Its Records

Fixed Stars That Are Not Fixed
How Their Motions Are Detected by Making Them Wink at Us

A City Without Water
How Winnipeg Brought the Essential Fluid 100 Miles Across a Barren Plain

Preventing the Roll of Ships
Past and Present Schemes for Stabilizing Ships and Why the Gyroscopic Stabilizer Is Practical

The Falsework for a Big Dam
Some Unusual Trestles Employed in This Department of Concrete Construction

The Big Dam on the Little San Diego
A Multiple-Arch Structure of Unusual Height and Some of the Principles Involved in its Construction