▁a ▁number ▁of ▁host ▁countries . ▁In ▁ 1 8 9 2 – 1 8 9 3 ▁he ▁was ▁bapt ised ▁and ▁assumed ▁the ▁name ▁Ark adi y ▁Mik h ail ov ich . ▁In ▁ 1 8 9 6 ▁he ▁officially ▁changed ▁his ▁surname ▁to ▁Hard ing ▁( Г ар тин г ). ▁He ▁then ▁married ▁a ▁Belg ian ▁Mag dal ena ▁P irl ot . ▁In ▁ 1 9 0 0 , ▁he ▁was ▁appointed ▁head ▁of ▁Ok h ran a ▁Berlin ▁station , ▁which ▁initially ▁operated ▁as ▁a ▁branch ▁of ▁the ▁Paris ▁Ok h ran a ▁under ▁Rach kov sky , ▁but ▁more ▁independently ▁after ▁ 1 9 0 2 , ▁when ▁Rach kov sky ▁was ▁replaced ▁by ▁a ▁new ▁chief , ▁Leon id ▁R ata ev . ▁In ▁Berlin ▁Hart ing ▁organ ised ▁a ▁surve ill ance ▁and ▁pen etr ation ▁network ▁similar ▁to ▁that ▁operated ▁by ▁Rach kov sky ▁in ▁Paris . ▁One ▁of ▁his ▁agents ▁was ▁Y akov ▁Zh it om ir sky , ▁who ▁provided ▁valuable ▁information ▁on ▁the ▁activities ▁of ▁the ▁Russian ▁Social ▁Democratic ▁Labour ▁Party ▁and ▁its ▁B ols he vik ▁fa ction , ▁including ▁the ▁inner ▁circle ▁of ▁Russia ' s ▁future ▁commun ist ▁leader , ▁Vladimir ▁Len in . ▁Zh it orm ir sky ' s ▁information ▁led ▁to ▁the ▁arrest ▁of ▁K amo ▁by ▁the ▁German ▁Police ▁for ▁his ▁role ▁in ▁the ▁ 1 9 0 7 ▁T if lis ▁bank ▁rob ber y . ▁In ▁ 1 9 0 4