"Dramatic stories of the exciting achievements of the great scientists who have discovered the old world's new world under the microscope. A book for those who love high adventure, who delight in clear, brave writing and stirring narrative."—William Allen White

CONTENTS

Leeuwenhoek: First of the Microbe Hunters

Spallanzani: Microbes Must Have Parents!

Pasteur: Microbes Are a Menace!

Koch: The Death Fighter

Pasteur: And the Mad Dog

Roux and Behring: Massacre of the Guinea-Pigs

Metchnikoff: The Nice Phagocytes

Theobald Smith: Ticks and Texas Fever

Bruce: Trail of the Tsetse

Ross vs. Grassi: Malaria

Walter Reed: In the Interest of Science—And for Humanity!

Paul Ehrlich: The Magic Bullet

From the dust jacket