Entered according to the Act of Congress, in the year 1872, by H. C. CAREY, in the office of the Librarian of Congress, at Washington. COLLINS, PRINTER, 705 JAYNE STREET. RITISH ΤΟ PROFESSOR EUGENE DÜHRING— WORTHY SUCCESSOR OF FREDERIC LIST IN THE GREAT WORK OF PROVING TO THE GERMANIC NATION THAT DOMESTIC INTERDEPENDENCE, NATIONAL INDEPENDENCE, PUBLIC PEACE, AND PRIVATE HAPPINESS, TEND ALWAYS TO MARCH HAND IN HAND TOGETHER This Volume IS DEDICATED IN TOKEN OF ITS AUTHOR'S HIGH RESPECT. Professor Dühring's field of action is that of the University of Berlin. Of his many works none have yet been reproduced in the English language, and therefore does the author deem it well to call to the attention of the reader the two most recent, as follows: First of these is, "A Critical History of Political Economy and Social Science" (Berlin, 1871); a work remarkable for its critical acumen, and as furnishing a more thorough exhibit of the course of sociological science, from its earliest days, than any that, until now, has been given to the world. It is much to be desired that it should be here translated. Second. "A Critical History of the General Principles of Mechanical Science from the days of Galileo to the present time." This work, not yet published, was prepared in response to a public invitation from the University of Göttingen, and was honored, March, 1872, by an award of the highest prize that had been offered; that award, too, accompanied by |