Scientific American Magazine

The Largest Archeological Expedition Yet Undertaken In America Has Yielded Remarkable Results on a Site Later to be Opened To Visitors as a National Monument

May Add Sight to Sound Broadcasting

Double-Decked, 8 1/4 Miles Long, In Two Sections, Twin Suspension Spans In One Section, Will Serve Huge Industrial Centers

Packaging Now an Industry, Amazing Growth, Follows Trend Toward Color, Originality, Modernity, Employs Much Talent, Enhances Quality or Appearance, Phenomenal Profit Increases

Part IX--The Principle and Construction of the Armillary Sphere

Why Jews Have Some Diseases More and Others Less than Gentiles, First Class Insurance Risk, Most Nervous People on Earth, An Effect of Inbreeding, Either Very Good or Very Bad

Tiny Race Cars Are Developing a New High-Speed Sport

Advanced Amateur Photographers Will Often Find it Possible to Retake Scenes in the Dark Room, Some of the Tricks of the Trade

Rapid-Growing Hybrids, 10 to 14 Times Faster Than Natural, 80-Cord Crop Per Acre in 12 Years, More Profitable Than Wheat, Boon to Farmers, Paper Makers, Lumbermen, Cut Importations, An Important Achievement