"The major advances in the science of saving lives--from cave man days to the discovery of Dr. Salk--are the subject of this book. . .Vesalius, Galen, Harvey, Pasteur, Leeuwenhoek, Koch, Walter Reed, John Warren--these are among the great men whose works is described."

An illustrated introduction to the world under the sea and the special diving machines that probe the ocean depths. Includes information on sea creatures and their different habitats, underwater labs, fishing techniques, and searching for sunken treasure.

Describes the history, structure, and functions of medieval castles and the equipment and activities of knights in the Middle Ages.

An illustrated introduction to pedigree dogs, including gun dogs, hounds, terriers, and toy dogs, with information on making a choice, training, general care, and the evolution of dogs.

"A closer look at the world of the ancient Romans. Find out how they lived, which games they played, and what discoveries they made"--Cover.

While visiting the science museum, three young kids learn about many ways of communication before the invention of the telephone.

Illustrations and brief text present various breeds of dogs known as companions, or non-sporting dogs, including the Dalmatian, Keeshond, poodle, and Shar-Pei.

Describes what it is like to see sharks in their natural environment and discusses dangers that divers face and how they protect themselves.