The Lautgesetz-Controversy: A documentation (1885–86). New edition
Essay(s) by Georg Curtius (1820–85), Berthold Delbrück (1842–1922), Karl Brugmann (1849–1919), Hugo Schuchardt (1842–1927), Hermann Collitz (1855–1945), Hermann Osthoff (1847–1909) and Otto Jespersen (1860–1943)
[Amsterdam Classics in Linguistics, 1800–1925, 9] 1977. 587 pp.