Book digitized by Google from the library of Harvard University and uploaded to the Internet Archive by user tpb. Chemical abstracts Publication suspended 1944-47. Cf. v. 102, A-B, "Schlusslieferung" dated 1943-54 Vols. 1-50 numbered also in series of 10 vols. each Vols. 95-102 issued in two sections: Geologische Abteilung; Biologische Abteilung Vols. 11-51 include the Sitzungsberichte der Niederrheinische Gesellschaft für Natur- und Heilkunde, 1851/54-1894 Vols. 8-51 include the society's Correspondenzblatt, 1851-94, as a separately paged section (beginning in 1895 incorporated in the text) Vols. for 1844-19<59> issued by Naturhistorischer Verein der Rheinlande und Westfalens (called 1844-1933, Naturhistorischer Verein der preussischen Rheinlande und Westfalens (varies slightly)) Vols. 1-10, 1844-53, with v. 11; Vols. 1-40, 1844-83. 1 v SERBIB/SERLOC merged record ACQN: aq 99007283 RECD: 1998/151