Daily Gaging of Tennessee Valley Stream Levels and Rainfall; Dams Store or Release Water Accordingly; For Flood Control, Navigation
Grits for Grinding
Abrasives Important to Industry; Make Possible Improved Grinding, Lapping, Polishing, Precision Work; Abrasive Research Goes On....
Number One Rocket Man
A Silhouette of the Shy Massachusetts Physicist Who Pioneered in Rocket Research, Much to His Distress He Broke into the Noisier Newspapers...
Soon to be Flooded
Cellophane is Born
Chemistry's Newest Sleuth
Micro-Analysis Enables Chemists to Study Minute Samples, Diagnoses Product Flaws and Ailments, Supplements Usual Laboratory Methods....
Insulin for Schizophrenia
An Estimate of the New Insulin Shock Treatment for Schizophrenic Insanity, The Enthusiasm for this Astounding New Method Apparently is Justified....
Starch from the Sweet Potato
Purity, Color, and Quality Equal to the Finest Starches, Bleaching Process Perfected, Of Great Economic Significance, Now in Production...
A Great Work Completed
The Monumental New General Catalog of Stars for the Professional Astronomer, in Preparation More than 30 Years, is Finished, An Enormous Task....
Color Names Cause Confusion, A New System is Being Developed to Bring About Definite Standards, Like Sections of Grapefruit...
50 Years Ago, May 1938
- From the Editor
Our Point of View, May 1938
Books Selected by the Editors, May 1938
Personalities in Industry, May 1938
Giant Strip Mill, Binocular Magnifier, and more
Camera Angles, May 1938
Camera Angles Round Table, May 1938
Telescoptics, May 1938
Current Bulletin Briefs, May 1938
Legal High-Lights, May 1938