Feature

“Clipper Ships” of the Sky

Even the Best of Singers Carol off True Pitch

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