Feature

Persons with Good Noses Selected to Work in Dust

Largest Cities Usually Have Softest Water

Nature Ramblings: Patient Ferns

Element 91 Independently Isolated in Chicago, Berlin

Injections and Heat Help Chronic Sinus Troubles

Front Matter

Synthetic Vitamin Produces Striking Unexpected Cures

Long-Lost Caterpillar of Rare Butterfly Re-Found

Is America Getting a Broader Waistline?

Jimmy and Johnny Are Both Trained Now

Enzymes May Help the Body in Battle against Cancer

Detached Retina Blindness Curable in Half of Cases