"[This book] has a warm feeling for all natural phenomena; it has a rapport with man and his world and his problems; it has appraisal, and even blame and condemnation; but, above all, it has hope and belief. And it has the beauty of prose that characterizes Eiseley's philosophical moods."--Chicago Sunday Tribune
"Dr. Eiseley describes with zest and admiration the giant steps that have led man, in a scant three hundred years, to grasp the nature of his extraordinary past and to substitute a natural world for a world of divine creation and intervention. . . . An irresistible inducement to partake of the almost forgotten excitements of reflection."--New Yorker
"There can be no question that Loren Eiseley maintains a place of eminence among nature writers. His extended explorations of human life and mind, set against the backdrop of our own and other universes are like those to be found in every book of nature writing currently available. . . . We now routinely expect our nature writers to leap across the chasm between science, natural history, and poetry with grace and ease. Eiseley made the leap at a time when science was science, and literature was, well, literature. . . . His writing delivered science to nonscientists in the lyrical language of earthly metaphor, irony, simile, and narrative, all paced like a good mystery."--Bloomsbury Review