4 CONVICTS GIVE UP TO CITIZEN GROUP AFTER 3-DAY SIEGE; Committee of Seven, Selected by Rebel Boston Felons, Arranges Surrender
convicts surrender, release hostages after 2 confs with citizems com chosen by them; com spokesman E Canham repts no deals made; says he pledged to work to better prison condition; Gov Herter says convicts will be tried quickly; Atty Gen Fingold to prosecute; illus