Vols. 1-20, 31-34, 1913-24, 1930-34 each consist of 2 sections: Abhandlungen. Literatur, Chronik und archivalien; v. 21-30, 1925-29 of 3 sections: Abhandlungen; Chronik und archivalien, Literatur. Each section has separate t.p. and paging.
The section Chronik und archivalien omitted 1930.
Beginning with v. 41, Literatur section is called Schrifttum.