Feature

New Kind of Toxin May Yield Serum for Many Diseases

Bacteria-Eating Protozoa Thrive Best on Mixed Diet

First Glances at New Books

Front Matter

Parenthood Seems to Depend on Inorganic Manganese

Earth’s Magnets Quiver Day after Outburst on Sun

California Astronomer Chosen National Academy President

[Photograph]: Insatiable Curiosity

Python Likes New Home; Lays Clutch of Eggs

Pressure of Sunlight Strong Enough to Break Comet in Two

New Camera Photographs Disease in Ear

Lifeless Drops Can Act as If They Had Life in Them