KOCH, Robert. "Die Aetiologie der Tuberculose," in Berliner Klinische Wochenschrift. Berlin: August Hirschwald, 1882. No. 15. 4o. Provenance: Institutional; from the Library of Haskell F. Norman. THE FIRST ANNOUNCEMENT OF THE ISOLATION OF THE TUBERCLE BACILLUS. "The contributions of Koch to the germ theory of disease are of major importance and run parallel with those of Pasteur." (PMM 366).