He various publications here reviewed consist of works which are united by their subject-matter but they differ widely from each other in character and scope. The work of Mr Kilbride-Jones1 is a monograph strictly confined to certain objects found in a certain part of Europe; that of Mr Hallstrom, on the other hand, consists of what may be called a comprehensive monograph—that is to say, it brings together and relates several straightforward descriptions of a sin le subject (rock-art), but covers many different parts of a large archaeological region. Messrs Kühn and Adama van Scheltema have touched upon a vast subject—prehistoric and protohistoric art in Germany—so that their productions assume the form of text-books.