▁XVIII ▁Summer ▁Sym pos ium ▁in ▁Real ▁Analysis . ▁His ▁academic ▁career ▁began ▁as ▁Ass istant ▁L ect urer , ▁Bed ford ▁College ▁for ▁Women , ▁ 1 9 4 7 – 4 8 ; ▁then ▁Ass istant ▁L ect urer ▁at ▁B irk beck , ▁ 1 9 4 8 – 5 1 ; ▁L ect urer , ▁Queen ' s ▁University ▁B elf ast , ▁ 1 9 5 1 – 5 6 ; ▁L ect urer , ▁Br istol ▁University , ▁ 1 9 5 6 – 6 0 ; ▁Senior ▁L ect urer ▁and ▁Re ader , ▁Queen ' s ▁University ▁B elf ast , ▁ 1 9 6 0 – 6 4 ; ▁Re ader , ▁Lanc aster ▁University , ▁ 1 9 6 4 – 7 0 ; ▁Chair ▁of ▁P ure ▁Mathemat ics , ▁New ▁University ▁of ▁Ul ster , ▁ 1 9 7 0 – 8 8 ; ▁and ▁Le ver h ul me ▁Fellow ▁ 1 9 8 8 - 9 1 . ▁ ▁List ▁of ▁publications ▁of ▁Ralph ▁Hen stock ▁ ▁Much ▁of ▁Hen stock ' s ▁earliest ▁work ▁was ▁published ▁by ▁the ▁Journal ▁of ▁the ▁London ▁Mathemat ical ▁Society . ▁These ▁were ▁" On ▁interval ▁functions ▁and ▁their ▁integr als " ▁I ▁( 2 1 , ▁ 1 9 4 6 ) ▁and ▁II ▁ ▁( 2 3 , ▁ 1 9 4 8 ); ▁" The ▁efficiency ▁of ▁matrices ▁for ▁Taylor ▁series " ▁( 2 2 , ▁ 1 9 4