Feature

Millions Wasted Yearly for School Ventilation

Plant Patents Necessitate Use of Color Printing

Nature Ramblings: Crickets

Farm Student Appears More Radical than City Cousin

First Glances at New Books

Front Matter

Huge Burning Glass May Give Maximum Sun Heat on Earth

Prehistoric Cave Culture Proves Mystery to Scientists

Sulphur to Be Taken from Crater of Mexican Volcano

Eat Rather than Brush to Develop Sound Teeth

[Photograph]: Three Generations of Bridges

Grotesque Figure Dug up at Olynthus Shakes Art Theory