Feature

Mexico to Have Most Powerful Telescope in the Tropics

100-Inch Telescope Has Speed Planned for 200-Inch Mirror

Earth’s Eruptions

Science Observer

Blood Chemical May Cause Hay-Fever Symptoms

Fierce Wild Mice Hunt for Prey like Hounds

Unity of American Cultures Sought in Havana Conference

Russian Scientist Restores Human Likeness to Skulls

Howler Monkeys Have Better Foreign Policy than Man

New Machines and Gadgets

Nature Ramblings: Not Guilty

First Glances at New Books