Food Selection—I
For Rational and Economical Living
Features
Removing Rust from Nickel
Long-Heads, Square-Heads, and Short-Heads
High-Explosive Shells
Ammunition Used in Modern Rapid Fire Guns
Turbine Blading
Photo-Chemistry
Research in Relation to the Reactions Caused by Light
Moving a Lighthouse
Some Noted Zoological Parks
The National Zoological Park at Washington
Light and Illumination—II
A Survey of the History, Principles and Practice of Lighting Concluded from Scientific American Supplement No. 2099, Page 194, March 25, 1916
Jupiter—the Solar King
Finding your Way at Night without a Compass
An Accomplishment Necessary for the Soldier, Explorer or Traveler
Jupiter—The Solar King
Flame Standards in Photometery
Conditions to Be Met and Facts Relating to Lamps Used
Proctor's Formula for Tanning Hides
Sources and Collection of Rubber
Departments
- Letters
Correspondence - April 1, 1916
