2D - F + l N 6 Latitude - Prep. for printer, 1915 May 10-1915 May 11 Box 25, Folder 130 Bookmark Collection Context Yale University -Manuscripts and Archives Department of Astronomy, Yale University, records, 1848-1979Records, 1860-1972III. Ernest William Brown, 1880-1939Research notes
2D +l', Hansemian Plan (2), Also interpolated to Long Cycle Plan, S 17 (18 h), 1909-1909 Box 18, Folder 17 Bookmark Collection Context Yale University -Manuscripts and Archives Department of Astronomy, Yale University, records, 1848-1979Records, 1860-1972III. Ernest William Brown, 1880-1939Research notes
2D - l - l', Hansemian Plan (4), S 8 (27 h) Also interpolated to long cycle plan, 1909-1909 Box 19, Folder 35 Bookmark Collection Context Yale University -Manuscripts and Archives Department of Astronomy, Yale University, records, 1848-1979Records, 1860-1972III. Ernest William Brown, 1880-1939Research notes
2D - l + l', Hansemia plan (3), S 16 (16 1/2), 1909. Now complete, April 8, 1911 Box 19, Folder 43 Bookmark Collection Context Yale University -Manuscripts and Archives Department of Astronomy, Yale University, records, 1848-1979Records, 1860-1972III. Ernest William Brown, 1880-1939Research notes
2D + l Long Cycle Plan, S 4 (21 h), 1909-1909 Box 19, Folder 31 Bookmark Collection Context Yale University -Manuscripts and Archives Department of Astronomy, Yale University, records, 1848-1979Records, 1860-1972III. Ernest William Brown, 1880-1939Research notes
2D Long Cycle Plan, S 2 (44 h), undated Box 19, Folder 28 Bookmark Collection Context Yale University -Manuscripts and Archives Department of Astronomy, Yale University, records, 1848-1979Records, 1860-1972III. Ernest William Brown, 1880-1939Research notes
2D - l', S 6 (21 h) Hansemia Plan, 1909-1909 Box 19, Folder 33 Bookmark Collection Context Yale University -Manuscripts and Archives Department of Astronomy, Yale University, records, 1848-1979Records, 1860-1972III. Ernest William Brown, 1880-1939Research notes
2F - l, Hansemia Plan (8), S 14 (7 h) not interp. to exact date, also interpolated to Long cycle plan, 1909-1909 Box 19, Folder 41 Bookmark Collection Context Yale University -Manuscripts and Archives Department of Astronomy, Yale University, records, 1848-1979Records, 1860-1972III. Ernest William Brown, 1880-1939Research notes
2F, Long cycle plan, S 11 (39h) Box 19, Folder 38 Bookmark Collection Context Yale University -Manuscripts and Archives Department of Astronomy, Yale University, records, 1848-1979Records, 1860-1972III. Ernest William Brown, 1880-1939Research notes
2F, Long cycle plan, S 12 (26 h), undated Box 19, Folder 39 Bookmark Collection Context Yale University -Manuscripts and Archives Department of Astronomy, Yale University, records, 1848-1979Records, 1860-1972III. Ernest William Brown, 1880-1939Research notes