A Battleship that will Never Sail the Seven Seas, Electrolytic Iron for Commercial Use
Recruiting "battleship" built in Union Square Park, New York.
Recruiting "battleship" built in Union Square Park, New York.
Internal Construction and Operation of the German U-Boat
By Our Military Expert
How the Once Erratic Generator Has Been Developed Into a Most Successful Radio Transmitter
Principle Employed Similar to that of the Gun Silencer
By Hudson Maxim
Mining and countermining on the Western Front
[The cover image of this issue is associated with the mining article]