Feature

[Photograph]: Germ against Germ

Pain Felt at Same Level of Stimulus by All Persons

Nature Ramblings: Nomenclatural Inequities

Hydrocyanic Acid Found in Several Plant Species

Individual Sneeze Pattern Shown to Be Hereditary Trait

Two-Purpose Machine Gun Mount Is Recent Patent

[Photograph]: Transparent Valve

Ancient Gateway of Kish Reconstructed in Museum

Front Matter

Leadless Storage Battery Sought by Nazi Germany

Half of Railroad Trackage Still Lacks Block Signals

Star Study Program Will Not Be Finished Until 2019