Santiago Ramon y Cajal (1852-1934) made prolific and lasting contributions to understanding "the life of the infinitely small." Widely thought of as the founder of neuroscience, Cajal made remarkable explorations into the organization and function of the nervous system. His work is still referred to more than that of any other scientist in the field.W. Maxwell Cowan's foreword to this edition conveys the excitement and energy of Cajal's life and endeavors, the liveliness and flamboyance of his engagements with the microscope. Cowan surveys Cajal's salient discoveries, noting that almost...