30 JULY 1927, Page 22

PHILIPS' HISTORICAL ATLAS. By Ramsay Muir and George Philip. With

the Collaboration of Robert McElroy. (G. Philip and Son. 15s.)—Good historical maps are essential to the understanding of history, but they have not been easy to obtain in England at a moderate price. We are glad, therefore, to call attention to the sixth edition of Philips' atlas of mediaeval and modern history, because it is really a new book, twice as large as the old and infinitely superior in every respect. Professor McElroy, the Harmsworth Professor of American History at Oxford, has supervised the numerous American maps and written a valuable commentary on them. The English editors and cartographers have done their work uncommonly well, and the maps illustrating race-distribution, population, trade-routes and so on are ingenious and instructive. Every school ought to have this atlas in its library.