We gladly call attention to the valuable searches made by Mr. Bond among original MS. authorities in the Public Records, especially the instructive “Fabric Rolls.” The careful excavations which he has been permitted to make have also led to important results, and, in short, we have in his book the fruits of long and patient study on the spot, combined with an unsparing and yet critical use of all available sources of original information. We must not omit to notice the excellent plans and illustrations, with which the volume is liberally adorned, and which, by their great clearness, are admirably adapted to their purpose. _Mediæval Military Architecture in England._ 2 vols. By G. T. CLARK. Wyman. 1884. IT is with a feeling of real gratitude that we welcome this noble work. The prolonged labours of “Castle Clark” have long been familiar to antiquaries, and no archæological meeting at any spot that could boast a castle has seemed complete without the presence of “the great master of military architecture,” as Mr. Clark has been justly termed by Professor Freeman: to whom, by the way, these volumes are dedicated, as having been issued “at his suggestion.” It has long been a matter of natural regret that the valuable results of Mr. Clark’s researches should have been so widely scattered as to render them, for practical purposes, inaccessible to the student. In these volumes they have now been collected, gathered together from many quarters, such as the “Transactions” of the national and local Archæological societies, the _Builder_, and, not least, the scarce volume known as “Old London,” from which Mr. Clark has been allowed to reproduce his important monograph on the Tower. The work begins with twelve introductory chapters, of which we may select, as of special interest, that on “earthworks of the post-Roman and English periods,” an obscure subject, on which Mr. Clark has here collected much instructive information. Three chapters deal with “the Castles of England and Wales at the latter part of the twelfth century,” and we can only regret that a subsequent chapter has not been devoted to the period of the Charter (1213-1223), when these fortresses played so large and important a part in the struggle. These chapters are succeeded by more than one hundred papers on various castles and works, not confined to England alone, as could be gathered from the title, but including many in Wales, Borthwick Tower in Scotland, and, beyond the Channel, the typical strongholds of Arques and Coucy, together with the famous Château-Gaillard. The plans and diagrams, so all-essential in a work dealing with these subjects, are bestowed with no sparing hand, and there are not a few illustrations of a less severe character.