Feature

New Studies Cast Doubt on Cancer Treatment Value

Trumpeter Swans Again Nesting in Yellowstone

Mummy’s Interior Studied without Spoiling Exterior

“Healthy Savage” Myth Hit by Research on African Natives

Female Gland Extract Checks Bleeders’ Disease in Males

Front Matter

Electric Heating Keeps Chickens Warm

[Photograph]: Good to Eat: And Safe

Hot Waves Bring Northwest Grasshopper Invasion Menace

Some Elements Yielded by Yttrium: “A Classic of Science”

Copper Put into Auto Valves to Make Them Last Longer

Mastodon Remains Found in Turkey