Presents thirteen stories which describe how scientists used methods of microscopic investigation to uncover such mysteries as radioactivity, diabetes, microchips, and superconductors.
Fourteen tales describe the scientific procedures used by a variety of scientists, including Pasteur and George Washington Carver, to make significant discoveries and breakthroughs in scientific knowledge.
Describes the poisons that come from animals, plants, bacteria, earth, and water and discusses the science of toxicology and the work of a poison control center.