Feature

Electronic Brains Can Mass Produce Clerical Work

Electrically Heated Smudge Pots to Protect Orchards

Spring Time for Ticks

Rhenium Has Bright Future

In Science Fields

Faint Double Star Is Triple

Now Tape Recorder Will “Count Your Sheep”

Front Matter

Earth Gets More Magnetic during Last Two Decades

Crystals Cage Inert Gases

Clean Coal by Airflow

World’s Tiniest Plant in Its Class Is Leafless Parasite