▁studies ▁were ▁interrupted ▁by ▁the ▁on set ▁of ▁the ▁Second ▁World ▁War , ▁and ▁he ▁left ▁in ▁ 1 9 4 0 . ▁ ▁Career ▁H od ges ▁served ▁in ▁the ▁Royal ▁Naval ▁Air ▁Branch , ▁flying ▁as ▁an ▁observer ▁in ▁S word fish es ▁with ▁the ▁Atlantic ▁Con vo ys ▁until ▁he ▁was ▁in val ided ▁out ▁with ▁t uber cul osis . ▁He ▁taught ▁at ▁a ▁prepar atory ▁school ▁from ▁ 1 9 4 6 ▁to ▁ 1 9 4 9 , ▁but ▁again ▁suffered ▁from ▁t uber cul osis ▁and ▁spent ▁a ▁year ▁in ▁hospital ▁recuper ating . ▁At ▁this ▁time ▁he ▁developed ▁an ▁interest ▁in ▁arch ae ology , ▁and ▁when ▁recovered ▁studied ▁at ▁the ▁University ▁of ▁London ▁Institute ▁of ▁Arch ae ology ▁from ▁ 1 9 5 1 ▁to ▁ 1 9 5 3 ▁for ▁the ▁Post grad uate ▁Di pl oma ▁in ▁Pre histor ic ▁Arch ae ology . ▁Having ▁completed ▁his ▁studies ▁there , ▁H od ges ▁was ▁appointed ▁assistant ▁lect urer ▁in ▁Arch ae ology ▁at ▁Queen ' s ▁University , ▁B elf ast , ▁where ▁he ▁began ▁experimental ▁work ▁in ▁early ▁technology ▁and ▁developed ▁his ▁interest ▁in ▁conservation . ▁From ▁ 1 9 5 7 , ▁he ▁was ▁lect urer ▁in ▁Arch ae ological ▁Technology ▁at ▁the ▁University ▁of ▁London ▁Institute ▁of ▁Arch ae ology , ▁working ▁alongside ▁I one ▁Ged ye , ▁who ▁had ▁started ▁the ▁teaching ▁of ▁conservation ▁there . ▁By ▁the ▁late ▁ 1 9 5 0 s ▁conservation ▁was ▁coming