'The whole art of war in its historic evolution has never been treated on such an ample and comprehensive scale, and we question if any recent contribution to the exact history of the world has possessed more enduring value.'—Daily Chronicle.
'A clear and remarkably full account of the main currents of speculation. Scholarly precision . . . genuine tolerance . . . intense interest in his subject are Mr. Ottley's merits.'—Guardian.
'The most useful work of the kind that we have seen. A most valuable and practical manual.'—Manchester Guardian.
'A thoroughgoing working text-book of its subject, practical and well-stocked.'—Scotsman.
'Touched with lightness and sympathy. We recommend this book to all who are tired with the trash of novels.'—Spectator.
'This book is the highly diverting product of research and compilation. It is a magazine of instructive and amusing information.'—Academy.
'A well-written, copious, authentic history.'—Times.
'His book will take its place among the permanent literature of Arctic exploration.'—Times.
'Every page reveals wide reading, used with sound and scholarly judgment.'—Manchester Guardian.