
    Ethel Richards et al., Appellants, v. Doris Kaskel et al., as Executors of Alfred L. Kaskel, Deceased, et al., Respondents. (And Seven Other Actions.)
    Submitted March 12, 1973;
    decided March 15, 1973.
   Motion by Reginald Leo Duff, Esq., for leave to intervene as a party appellant or, in the alternative, for leave to file a brief amicus curiae on the appeal herein granted only to the extent that a brief amicus curiae may be filed,  