Numbering Peculiarities
Vol. 1 consists of 6 numbers dated 1899; t.-p. has inclusive dates 1. Apr. 1899-1. Apr. 1900; v. 2 consists of 4 numbers dated 6. Juni 1900-26. Feb. 1901; v. 3 of 3 numbers dated 13. Juli-24. Aug. 1901. Title-page and contents of v. 2-3 are combined, t.-p. has inclusive dates 1. Apr. 1900-1. Jan. 1902.