124. The Significance of a Decreasing Birth-Rate.-J. L. BROW 147. Exploitation of Theories of Value in the Discussion of the Standard of Deferred Payments.-FRANK FETTER. 148. Industrial Services of the Railways.-E. R. JOHNSON 149. Units of Investigation in the Social Sciences.-A. F. BENTLEY 150. Story of a Woman's Municipal Campaign by the Civic Club for School Reform in the Seventh Ward of the City of Philadelphia.-MRS. TALCOTT WILLIAMS, Editor 151. Development of the Present Constitution of France.-R. SALEILLES 159. Social Basis of Proportional Representation.-J. W. JENKS 15 |