It is a singular fact that since the publication of Dr. Lardner’s series in the first half of the nineteenth century, no satisfactory attempt has been made to bring the entire story of the world’s history to the attention of the English reader in a single work. While the presses of Germany have sent out their never ending stream of world histories, the English-speaking world has remained utterly inactive, so that until now there has been no work in English less than half a century old that could pretend to compete with any one of the numerous German productions. Buckle’s work would, to some extent, have supplied the deficit had he lived to complete it, yet even his effort was aimed rather at philosophical generalisations regarding human evolution, than at a narrative of historical events. If we attempt to explain this paucity of literature in so fascinating a field as that of world history, the solution is not far to seek: it is found in the very magnitude of the task. This is the age of specialists, and just in proportion as one appreciates the full meaning of special knowledge of any subject in its modern interpretation, must he feel the hopelessness of attempting to gain more than a general knowledge in a variety of fields. Yet something approaching the knowledge of the specialist should be brought to bear upon each period of history by any one who attempts to write a comprehensive history of the world. It is an appreciation of this fact that has led to the production of such a symposium as the Oncken series, just referred to, and contrariwise, it is the appreciation of the same fact that has led to the relative neglect of so admirable a work as that of Weber. The modern critic is disposed to feel that the writing of a really comprehensive world history in this age is a task beyond the capacity of any single man. When one considers the vast amount of research work in hitherto unexplored fields that is being carried on in every department of history, it becomes patent that no single mind can hope to cope at first hand with the ever increasing flood of special literature. In almost every department of history special bibliographies have been published of late years which are utterly bewildering, even to the specialist, in the wealth of material which they reveal.