4 JUNE 1921, Page 22

The Problem of Upper Silesia. Edited by Sidney Osborne. (G.

Allen and Unwin. 7s. 6d.)—Mr. Osborne himself is an ardent supporter of Germany's claim to the whole of Upper Silesia, and gives much space to a statement of the German case by Dr. Walther Schotte, mainly based on the economic argument that the Silesian industries are indivisible and dependent on German skill and capital and on the German market. Mr. Osborne, however, also gives a short statement of the Polish case by Mr. Harley and a lengthy plea by Mr. Sacharozewski, a Polish lawyer, for the grant of autonomy to an undivided Upper Silesia—as if there were not enough small States already in Central and Eastern Europe. Mr. Osborne gives five large scale maps of Upper Silesia, showing the detailed results of the plebiscite and the distribution of the railways, mines, and electric installations. The pamphlet appears opportunely to elucidate the question.