Feature

Grass-Roots Science

Much Spring Hay Fever Due to Plantain Pollen

Expedition Seeks Mummies Threatened by Foxes

Unit of Magnetism Studied; Light Becomes Tired Is Theory

Places Last Bolt in Frame of 200-Inch Telescope

Nature Ramblings: Dinosaurs — and Others

Severe Magnetic Storms Disturb Telegraph and Radio

Rickets Tendency Shown to Be Hereditary

First Glances at New Books

Front Matter

Sugar in Blood Protects against Poison of Alcohol

[Photograph]: Stone Age City