Volume I—20 March 1869–25 June 1871.
Volume II—16 August–8 November 1871.
Volume III—1 January 1872–23 June 1874.
Volume IV—23 June 1874–9 April 1877.
Volume V—20 April 1877–1 March 1879.
Volume VI—5 March 1879–3 July 1880.
Volume VII—4 July 1880–16 June 1881.
Volume VIII—17 June 1881–25 March 1882.
Volume IX—26 March 1882–22 September 1883.
Volume X—23 September 1883–10 April 1885.
Volume XI—11 April 1885–14 June 1888.
Volume XII—17 June 1888–6 November 1891.
Volume XIII—7 November 1891–4 November 1894.
Volume XIV—5 November 1894–12 April 1898.
Volume XV—13 April 1898–31 July 1900.
Volume XVI—1 August 1900–3 August 1903.
Volume XVII—5 August 1903–14 April 1906.
Volume XVIII—15 April 1906–11 November 1909.
Volume XIX—12 November 1909–26 October 1912.