An introduction to the study of the elements of the differential and integral calculus / from the German of the late Axel Harnack ; with the permission of the author. Harnack, Axel, 1851-1888. Cathcart, George L. (George Lambert) Calculus. Functions. QA303 .H28 517 HAI Tr. by George L. Cathcart. London : Williams and Norgate, 1891. 1891. 1891 Text x, 404 p. : http://resolver.library.cornell.edu/math/1934329 eng eng ger A digital reproduction made from a copy held by Cornel University is available from the Cornell University Library's Historical Mathematics Monographs Web site. A digital reproduction made from a copy held by Cornel University is available from the Cornell University Library's Historical Mathematics Monographs Web site.