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[Photograph]: Saved by Defect

Present U. S. Patent System Founded 100 Years Ago

Sciences Put Heads Together over Flood Control Problems

Chemistry Makes Dry Bones Reveal Ancients’ Blood Types

Front Matter

Three Vast Submarine Canyons Found off Atlantic Coast

Stratospherists Honored by Mackay Trophy Award

Shade of Trees Measures “Ripeness” of Timber

Paying Airline Passenger Safer than Auto Occupant

Persistent Hoarseness Is Early Sign of Cancer

Hope Neutron Rays May Prove More Efficient than X-Rays

World’s Largest Cyclotron at Michigan University