Construction and effect of testamentary dispositions - "All my personal possessions to my family as arranged by me and known to my executor" - whether intention of testatrix can be determined from the words of the will - whether valid will.
Hughes v National Trustees, Executors and Agency Company of Australasia Limited [1979] HCA 2; (1979) 143 CLR 134 at 137, 149 and 150, applied.