THE STORY OF THE WORLD 
In Uniform Volumes, Net $1.25 Each 
HOW THE WORLD BEGAN 
The Story of the Beginning of Life on Earth 
HOW THE WORLD IS CHANGING 
The Story of Geology 
THE WORLD OF ANIMALS 
The Story of Animals 
THE GARDEN OF THE WORLD 
The Story of Botany 
THE WORLD’S MOODS 
The Story of the Weather 
WHAT MAKES UP THE WORLD 
T he Story of Chemistry 
OTHER WORLDS THAN THIS 
The Story of Astronomy 
THE WORLD OF INSECTS 
The Story of Entomology 
THE WORLD OF INVISIBLE LIFE 
The Story of Microscopic Life 
THOMAS S. ROCKWELL COMPANY 
Publishers 
CHICAGO 
