The Price of Frightfulness, The Laboratory's the Thing and more
A response to the diplomatic war of words following the sinking of the "Lusitania"
Features
Fuel Oil for Locomotives
Its Study Offers Problems That Are not Met With in Other Fire Feeds
Strategic Moves of the War--July 21st, 1915 and more
Railroad Building Under and Over the Streets of New York--III
Tunneling Through Rock and Sand in the Bed of the East River
William Wallace Campbell, New War Cars for Our Army
Burrowing Animals
Borers That Wend Their Way Even Through Rock
An Attachment for Stereoscopic Cameras for Taking Ordinary Pictures
Departments
- Departments
Correspondence - July 31, 1915
The Heavens in August
Recently Patented Inventions - July 31, 1915
