The Naval and Military Exhibit of the National Security League
Weapons of Defense for Safeguarding the United States Against Attack
The Aeronautic Lessons of the European War
In This Experimental Air-War the Brilliancy of the Celtic Mind has Scored Heavily.
[The article mentions the destruction of a German Zeppelin by a British pilot]
The Strategic Moves of the War
Our Military Expert--June 17th, 1915
The Instrumental Study of the Heart
Methods by Which its Action and Condition are Observed and Recorded
Are Plants Cruel?
Brutal Injuries Inflicted on Insects and Animals
Electric Remote Gages for Shooting Ranges
Our Berlin Correspondent
The Heavens in July
Recently Patented Inventions - June 26, 1915