Feature

Erratum: In Science Fields: Rare Metal Makes Bearings Last Longer

Erratum: In Science Fields: Swedish Manufacturer Endows Science Foundation

Erratum: Nature Ramblings: Life Begins at 40 Degrees

Erratum: In Science Fields: Largest Cascading Transformer Assembled

Erratum: Unusual Movie Built from Variations of Parabola

Erratum: Two Airplane Manufacturers Developing Diesel Engines

Erratum: Plastics Used for Making Coated Waterproof Paper

Erratum: New Heavy Charged Particle Fits into Present Theories

Front Matter

Can Pick Infants Who Will Have Hay Fever or Asthma

Lead Atoms May Yield Clues to Very Old Earth’s History

Slow Motion Pictures Permit Close Study of Epilepsy Fits