21.iii.59, 7.xii.59, 21.i.60, 5.ii.60, 12.ii.60, 2.iii.60, 21.iii.60, 26.iii.60, 14.vi.60, 21.vi.60, 28.vi.60, 30.vi.60, 5.vii.60, 10.viii.60, 15.viii.60, 30.viii.60.