Increase Production!
Cemented Carbides, Near Diamond Hard Tantalum, Tungsten, Titanium, Face Tools and Dies, Reduce Rejects, Permit Fabrication of "Non-Machinable" Products
Volume 152, Issue 2
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Features
The Miniature Camera
The Advanced Amateur's Jack-of-all-Trades, High-Speed Lenses, Fast Films, "Gadgets," Wide Range of Choice, Great Enlargement Possible
The Most Interesting Star in the Sky
Zeta Aurigae, a Close Double Star, Red and White, Giant and Dwarf, Now Visible, A Five Week Eclipse, Remarkable Tale
Canalization of the Upper Mississippi River
Trunk-line Water Route From "Twin Cities" to New Orleans, 27 Dams With Locks Required, Cost 124,000,000 Dollars, Economic Gains
From the Archeologist's Note Book, February 1935
Making Your Own Photomicrographic Camera
Simple, Efficient, Durable, Materials Cost One Dollar, Wooden Frame, Chamois Skin Bellows, A Few Other Gadgets and an Evening or Two of Time
Rubber
Plant Experiments By Federal Scientists
The First Tennessee Valley Authorities
Excavations by CWA Workers Under the Tennessee Valley Authority Have Brought to Light on a Wholesale Scale the Contents of 40 Indian Mounds and Village Sites Soon to be Submerged by Reservoirs
Fire at Sea!
Many Ships Are Firetraps, Personnel Inadequately Trained and Disciplined, Yet Fireproofing and Full Protection Possible, Aroused Public Opinion Needed
The Versatile Papaya
Used as Breakfast Food, In the Manufacture of Rope, For Medicines and Cosmetics, 'A Melon in a Tree'
Let Us Die Fashionably
Growing Death Rate From Cancer and Heart Disease, Is It Real or Only Apparent, Why Our Alarm May Be False, Inaccurate Reporting of Cases by Earlier Physicians, Better Reporting Today Reveals More of the True Cases