Feature

Books of the Week

Visible Lightning Bolt Is Earth-to-Cloud Bound

New Machines and Gadgets

Front Matter

Blood Processed Quickly

Intense Radiation to Find Industrial Chemical Use

Locusts in Iran Subdued

Orange and Lemon Wastes Yield Valuable By-Products

New Theory of Matter

[Photograph]: Meteor Crater?

Sugar Beet Virus Disease Suspected Menacing U. S.

Arteries Make Chemicals