Feature

Iron Known to Primitive Man Says Harvard Scientist

Ice Age Probably Known in First Geological Period

Astronomer Wants New Check-up on Einstein

Queer Customs of Eskimo Related by Physician

Less Heat from Sun during an Eclipse

Sulphur Found Ideal Apple Spray

Offerings of the Heavens for 1925

December 31 Only Twelve Hours Long to Astronomers

Free Verse Has Own Form

Pupin, Immigrant Inventor, Heads American Scientists

Portrays Inland Ocean Washing over America

Scientist Doubts Franklin Flew Kite in Thunderstorm