This is the book on Teilhard that the intellectually curious layman has been waiting for. It covers the whole range of the great Jesuit's thought in cosmology, history, anthropology, theology and spirituality and, by means of a combination of continuous narrative and comprehensive annotation, provides an analysis and synthesis of Teilhard's thought that surpasses anything that has yet been published in this area. It is true that, occasionally, Mr. Hague's translation limps as it struggles through the clutter of unexercised Gallicisms; yet, Father Rideau's clarity of expression and precision of thought survives relatively intact, as he makes his way through the Teilhardian subtleties and terminology that have hitherto been the despair of lesser men. The result has been a book which is the most authoritative and thorough analysis of and commentary on the whole of Teilhard's work to appear in English. Expensive though it be, the book will be indispensable to institutional libraries of any size as well as to scholars, students, and literate laymen concerned with ""the phenomenon of Teilhard.