Feature

300 Generations Descended from One Pair of Insects

Iroquois Indians Had Code for Murderers

Convalescent Serum, Hygiene Preventives of Measles

[Photograph]: Rare Water

Candy Pills Not for Children

Robinson Crusoe’s Isle Made National Park by Chile

[Photograph]: Now a National Park

Olive Oil Injections Aid in Treating Pneumonia

Revolution Does Not Stop Archaeologists’ Digging

In Science Fields

Three Planets

Conscience, Immortality Disputed in England