Feature

Engineers Coin New Term, Called See-Level

Paper Bags of Rock Dust Prevent Dust Explosions

Nature Ramblings: “Just Scenery”

Service Urged to Prevent Unnecessary Surgery

First Glances at New Books

Front Matter

“Plating” with Thin Films Makes Glass More Transparent

New Chapter in Germ Hunt Now Being Written

How to Sell a War in Three Easy Lessons

[Photographs]: Pattern of Golf

Warns against Poison Hazard in Rayon Manufacture

Man’s Egotism Shattered by Life’s Thin Film on Earth