Zeitschrift der Deutschen Geologischen Gesellschaft. Deutsche Geologische Gesellschaft. text Periodicals. [Berlin] : [Wilhelm Hertz], [1849]- ger volumes : 24-26 cm Title from caption. Each volume includes "Verhandlungen"; 1903- Monatsberichte. Vol. 1 (1848)-v. 50 (1898) in v. 50; v. 51 (1899)-v. 80 (1928). 1 v. (Includes index to later titles). Microfilm. New York : Columbia University Libraries for Research Library Group, microfilm reels ; 35 mm. Geology -- Periodicals. Geology.