Feature

Brain and Intelligence Grew Together, Says Dr. Ritter

Want Key-of-G Crickets; Princeton Sends Regrets

First Glances at New Books

Saliva from Vampire Bats Contains No Anti-Coagulant

Ship’s Officer Saw Two Setting Moons

First Glances at New Books

Front Matter

Poor Military Aircraft Must Be Avoided through Research

Transparent Plastic Used to Preserve Insects

Research of Polio Takes New Angle; Virus Strains Differ

Hunt in New Guinea for Foe of Sugar Cane Insect Pest

Oceans Half Billion Years Old, Their Salt Tells Scientists