Journal of the British Ornithologists' Union Volumes [7]-[84] are numbered new series [i.e., 2d series] 1-6, 1865-70; 3d ser., v. 1-6, 1871-76; 4th ser., v. 1-6, 1877-82; 5th ser., v. 1-6, 1883-86; 6th ser., v. 1-6, 1889-94; 7th ser., v. 1-6, 1895-1900; 8th ser., v. 1-6, 1901-06; 9th ser., v. 1-6, 1907-12 (v. 2, Jubilee supplement); 10th ser., v. 1-6, 1913-18 (Jubilee supplement no. 2); 11th ser., v. 1-6, 1919-24; 12th ser., v. 1-6, 1925-30; 13th ser., v. 1-6, 1931-36; 14th ser., v. 1-6, 1937-42 Beginning with v. 87, the series of 6 volumes is discontinued and the numbering continues the whole numbering General index for new series [i.e., 2d ser.] in 3d ser., v. 1; for 3d series in 4th ser., v. 1; in v. 6 of that series for the 4th-14th series 1st-3d ser., 1859-76. 1 v.; 4th-6th ser., 1877-94. 1 v.; 7th-9th ser., 1895-1912. 1 v.; 10th-12th ser., 1913-30. 1 v Subject index: 1st-6th ser., 1859-94. 1 v.; 7th-9th ser., 1895- 1912. 1 v.; 10th-12th ser., 1913-20. 1 v Some issues for 1976-85 accompanied by supplement with title: Recent literature; for 1986-98 with title: Recent ornithological literature extracted picklist Elecresource