When we consider how many indications are still discoverable, by those who know how to look for them, of the influence which the incursions of the Danes and Northmen into Britain have exercised upon our language, customs, and social and political condition; and that even the most cursory glance at the map of these islands will show in so many local names indisputable evidence of Danish occupation--evidence which is amply confirmed by many of our archaisms or provincialisms, our popular customs and observances,--when these things are considered, it is obvious that a work which should give us the result of these incursions, if written by a competent hand, must prove of great and general interest. Just such a book has been issued by Mr. Murray, under the title of _An Account of the Danes and Norwegians in England, Scotland, and Ireland_, by J. J. A. Worsaae. All who had the pleasure of making Mr. Worsaae's acquaintance when he visited this country in 1846-47, were aware that he possessed two qualifications essentially necessary for the proper execution of the task which he had undertaken. For his archæological acquirements were made patent (even to those who were unable to study his various antiquarian publications in Danish and German) by the English version of his _Primæval Antiquities of Denmark_; while his thorough mastery over our language was such as to enable him to pursue his researches into the period of our country's history which he proposed to illustrate, without the slightest let or hindrance. With a theme, then, which may be considered as novel as it is interesting (for it is the first attempt to view the subject _from the Danish side_), and with such abilities to do it justice, it is no wonder that Mr. Worsaae has produced a work which will, we are sure, be found to possess the double merit of not only gratifying the antiquary, but also of interesting, instructing, and amusing the general reader. To form a complete Encyclopædia of Classical Antiquity, it was necessary that to the _Dictionaries of Greek and Roman Antiquities_, and of _Greek and Roman Biography and Mythology_, should be added a _Dictionary of Greek and Roman Geography_. That want is in the course of being supplied. The first Quarterly Part of such a _Dictionary_, called, for the sake of uniformity, "_of Greek and Roman Geography_," but including even Scriptural names, and so being in reality a _Dictionary of Ancient Geography_, edited by Dr. Smith, written by the principal contributors to the former works, and illustrated by numerous woodcuts, has just been issued. It equals its predecessors in its claims to the support of all students and lovers of classical learning; and we know no higher praise.