SERIES IN 



Mathematics. 



Volume I. 



i. Contributions to the Geometry of the Triangle. 



By R. J. Aley, A. M. 



2. Properties of the Locus r = Constant, in Space of « Dimensions. 



By Paul R. Heyl, B. S. 



SERIES IN 



Political Economy and Public Law. 



Volume 1. 



i. The Wharton School Annals of Political Science. March, 1S85. 



2. The Anti-Rent Agitation in the State of New York. 1839-1846. 



By Edward P. Cheyney. 



3. Ground Rents in Philadelphia. By Edward P. Allinson and 



];. Penrose. 



4. The Consumption of Wealth. By Simon N. Patten. 



5. Prison Statistics of the United States for 1888. By Roland 



P. Falkner. 



6. The Principles of Rational Taxation. ( Read at a meeting of the 

 Association, November 21st, 1889.) By Simon N. Patten. 



7. The Federal Constitution of Germany. With an historical intro- 

 duction, translated by Edmund J. James. 



8. The Federal Constitution of Switzerland. Translated by Edmund 



J. James. 



Volume II. 



9. Our Sheep and the Tariff. By William Draper Lewis. 



Volume III. 



10. The German Bundesrath. A Study in Comparative Constitutional 



Law. By James Harvey Robinson. 



11. The Theory of Dynamic Economics. By Simon N. Patten. 



Volume IV. 



12. The Referendum in America. A Discussion of Law-Making by 



Popular Vote. By Ellis Paxson Oberholtzer. 



