Vols. 5-9, -1901, issued without volume numbering.
Suspended May 1870-Dec. 1882 and Feb. 1883-Apr. 1886.
Suspended between v. 46 (1961) and v. 47 (1975), between v. 57 (1984) and v. 58 (1993), and between v. 58 (1993) and no. 59 (jan. 2002).
Individual issues of vol. 1-34, 1863-1936, numbered 1-162 (many issues combined).