Black Light--Unseen Rays--Causes Many Materials to Glow, Has Practical Uses
Research Shows Capillary Attraction Has Little To Do With Sap Circulation
Plant Growth Chemicals Require Painstaking Care. Promise Significant Results
Commonplace Fabrics with Superior Chaacteristics Given by Special Treatments
Unsurpassed In Many Uses, Especially Chemical Equipment, Has Passivity of Glass, Strength of Steel, Hard Tools Made by Powder Metallurgy
Large Supplies, Makes Extremely Hard Alloys of Copper, Other Metals, Low Percentage is Needed Research Finding New Alloys, New Uses
Necessity, Not a Fad, Controlled at Source, Stopped or Damped by Scientific Design, Improved Efficiency, Calm Nerves, Less Deafness
Tungsten Filaments Started It, Now Superior "Alloys" Made Without Melting, Components Retain Identity, Can Alloy Metals, Non-Metals
Composition Boards Originated as Wall Coverings, Now Find Wide Use, Field of Use Constantly Widens, Manufacture, Research for Future
Abrasives Important to Industry; Make Possible Improved Grinding, Lapping, Polishing, Precision Work; Abrasive Research Goes On....
Photo-Engraving Conquering a New, Difficult Field, Makes Printing Rolls for Textiles, Wall Paper, Certain Advantages over Older Methods
Retreading and Re-Capping, Carcasses Must Be Sound, Four Out of Five, Of Greatest Value When Cars and Trucks Are in Constant Service
Industrial Design Promotes Profits . . . Not Mere Decoration . . . Built-in Appearance of Competency with Charm Expresses Machine Age . . . Quality Now Comes with Quantity . . . Competition is the Driving Force...
Wire In Industry Everyday Life, For Man-Sized Jobs For Tinsel, Important New Electro-Galvanizing, Process "Tailor-Made" Wires