1 , ▁" On ▁the ▁top ographical ▁an atom y ▁of ▁the ▁ab dom inal ▁vis cera ▁in ▁man ". ▁Sub sequently , ▁he ▁contributed ▁to ▁the ▁three - dimensional ▁mapping ▁of ▁the ▁ab d omen , ▁which ▁was ▁based ▁on ▁numerous ▁bod ily ▁measurements , ▁“ some ▁ 1 0 , 0 0 0 ▁measurements ▁made ▁on ▁forty ▁bodies ”. ▁He ▁linked ▁his ▁measurements ▁to ▁an ▁imag inary ▁plane ▁of ▁section , ▁known ▁as ▁" Add ison ' s ▁trans py lor ic ▁plane ". ▁ ▁Political ▁career ▁▁ 1 9 0 7 – 1 9 1 4 ▁Mot iv ated ▁by ▁concern ▁for ▁the ▁treatment ▁of ▁the ▁poor , ▁and ▁that ▁the ▁effects ▁of ▁pover ty ▁on ▁health ▁could ▁be ▁fought ▁only ▁by ▁govern ments , ▁not ▁by ▁do ctors , ▁Add ison ▁entered ▁politics . ▁He ▁was ▁adopted ▁as ▁Liberal ▁candidate ▁for ▁Ho xt on , ▁Sh ored itch , ▁in ▁ 1 9 0 7 , ▁and ▁was ▁d uly ▁elected ▁in ▁the ▁January ▁ 1 9 1 0 ▁general ▁election . ▁ ▁The ▁Chan cell or ▁of ▁the ▁Ex che quer , ▁David ▁Lloyd ▁George , ▁noted ▁Add ison ' s ▁medical ▁background ▁and ▁asked ▁him ▁to ▁speak ▁in ▁support ▁of ▁the ▁ 1 9 1 1 ▁National ▁In sur ance ▁Bill , ▁both ▁in ▁Parliament ▁and ▁with ▁the ▁British ▁Medical ▁Association . ▁In ▁August ▁ 1 9 1 4 , ▁he ▁was ▁appointed ▁Parliament ary ▁Secretary ▁to ▁the ▁Board ▁of ▁Education , ▁under ▁Jack ▁Pe ase .