Feature

Front Matter

New Aid for Deaf Transmits Sound through Bones or Teeth

Racial Factor Involved in Rate of Metabolism

Jewels Suggest Aztec King Lay in Monte Alban Tomb

New Varieties Promised from Re-Found Tropical Water-Lily

Elaborate Apparatus Makes Three-Dimension Movies

Nocturnal Animals Subject of Study by Scientists

Venus, Queen of May Evening Skies

American Rediscovers Lost Chemical Compound

In Science Fields

Ostwald on Chemical Energy: “A Classic of Science”

Shakespeare’s Knowledge Defended by Archaeologist