Feature

Revolution in Animal Breeding

Second Largest Meteor Dug Half-Mile-Wide Crater

Better Electrical Storage

Cheaper Coffee in Future

Details of in-Flight Refueling System Revealed

Pyrethrum Insecticide Synthesized Commercially

Ways to Stop Tooth Bleed

Good Neighbors in Science

Small-Size TV Tube Has Industrial Applications

’50 Romeo Not Romantic

Brazil Oil Shale Deposits May Solve Fuel Problem

Front Matter