In the series of "The Antiquary's Books," under the general editorship of J. Charles Cox, LL.D. (Methuen and Co.), we have The Castles and Walled Towers of England, by Alfred Harvey, 7s. 6d. net. Mr. Harvey has had a large subject to handle, and has evidently taken pains to do his work satisfactorily. The number of castles of which some traces still exist is not far off a thousand, of which considerably more than a hundred present features of great interest. Of walled towns there are eight in all, though others possess considerable remains of what were once complete fortifications. Chester and York are examples of the first, Oxford of the second. This is a highly interesting volume, and its value as a practical guide is of the highest.