Feature

Reports Success with New Treatment for Pellagra

Airplanes See through Fog with New Photocell Device

[Photograph]: Signatures in Clay

Need Good “Ear” to Play Fixed-Key Instruments

Most Distant Visible Nebula Seen by Palaeozoic Light

New Type of Frozen Fruit Being Developed

[Photograph]: Aerial Mapping with Five-Lens Camera

Tracks of Cosmic Rays Seen by Experimenters

Ultraviolet Light Used in New Photographic Process

Means Found for Measuring Amount of Vitamin B Needed

Nature Ramblings: Winterberry

Study Shows Cancer Varies with Nationality