Issues for 1905 have no vol. numbering but constitute v. 1.
Irregular numbering: Vol. 4, no. 10-11 (Nov.-Dec. 1908) called no. 11-12; v.6, no.1 (Jan. 1910) called v. 6. no. 12; v. 6 (1911-1913) repeated.
Issues for Aug.-Dec. 1927 incorrectly numbered v. 11 on caption, but constitute v. 10, no. 7-11.
Vol. 12, no. 1 (1918) has no date.