erk ▁inj uries ▁around ▁Mall ory ' s ▁wa ist ▁must ▁mean ▁the ▁two ▁were ▁ro ped ▁when ▁they ▁fell ▁from ▁below ▁the ▁First ▁Step . ▁ 1 9 6 0 s ▁Chinese ▁Ever est ▁clim ber ▁X u ▁J ing ▁told ▁Eric ▁Sim ons on ▁and ▁Jo chen ▁Hem m leb ▁in ▁ 2 0 0 1 ▁that ▁he ▁re called ▁spot ting ▁a ▁cor pse ▁somewhere ▁in ▁the ▁Y ellow ▁Band . ▁Despite ▁numerous ▁searches ▁of ▁the ▁north ▁face , ▁no ▁sign ▁of ▁Ir v ine ▁has ▁turned ▁up ▁so ▁far . ▁One ▁research er ▁claims ▁to ▁have ▁finally ▁sp otted ▁Ir v ine ' s ▁body ▁using ▁micro scop ic ▁exam ination ▁of ▁aer ial ▁photograph s . ▁This ▁possible ▁discovery ▁set ▁off ▁a ▁new ▁round ▁of ▁search ▁exped itions ▁in ▁ 2 0 1 0 ▁and ▁ 2 0 1 1 . ▁▁ 1 9 3 3 : ▁R utt ledge ▁and ▁Houston ▁ ▁A ▁major ▁expedition , ▁under ▁the ▁leadership ▁of ▁Hugh ▁R utt ledge , ▁set ▁out ▁to ▁clim b ▁with ▁the ▁great ▁expect ations ▁that ▁this ▁time ▁they ▁would ▁succeed . ▁O xygen ▁was ▁taken ▁but ▁not ▁used ▁because ▁of ▁the ▁incorrect ▁but ▁ling ering ▁belief ▁that ▁it ▁was ▁of ▁little ▁benefit ▁to ▁a ▁properly ▁acc lim ated ▁clim ber . ▁After ▁del ays ▁caused ▁by ▁poor ▁weather ▁and ▁ill ness ▁of ▁team ▁members , ▁a ▁much ▁higher ▁assault ▁camp ▁was ▁placed ▁than ▁in ▁ 1 9 2 4 . ▁On ▁the ▁first ▁sum mit ▁attempt