4 4 , ▁she ▁was ▁appointed ▁head ▁of ▁the ▁Library ▁Department ▁of ▁the ▁Ministry ▁of ▁Education . ▁ ▁In ▁ 1 9 4 5 , ▁she ▁served ▁as ▁co - found er ▁in ▁re organ izing ▁the ▁Women ' s ▁League ▁and ▁was ▁appointed ▁to ▁serve ▁in ▁the ▁Ministry ▁of ▁Foreign ▁Affairs ▁of ▁the ▁Democratic ▁Party ▁government . ▁Part icip ating ▁in ▁peace ▁con ferences ▁held ▁in ▁Moscow , ▁Paris , ▁P ots dam ▁and ▁Prag ue , ▁she ▁was ▁one ▁of ▁the ▁cart ograph ers ▁who ▁del ine ated ▁the ▁western ▁Polish ▁border . ▁From ▁ 1 9 4 5 ▁to ▁ 1 9 4 8 , ▁she ▁served ▁on ▁the ▁City ▁Council ▁of ▁Wars aw . ▁In ▁ 1 9 5 1 ▁she ▁began ▁working ▁at ▁the ▁Museum ▁of ▁Earth ▁for ▁the ▁Polish ▁Academy ▁of ▁Sciences . ▁She ▁prepared ▁a ▁bibli ography ▁on ▁the ▁history ▁of ▁earth ▁sciences ▁in ▁Poland , ▁covering ▁a ▁ 2 0 0 ▁year ▁period , ▁prior ▁to ▁her ▁ret irement ▁in ▁ 1 9 5 8 . ▁This ▁work ▁was ▁her ▁" gre at est ▁scientific ▁achiev ement ", ▁covering ▁material ▁from ▁the ▁mid - e igh teenth ▁century ▁through ▁the ▁mid - tw enti eth ▁century ▁in ▁ 5 ▁volumes . ▁The ▁first ▁volumes , ▁published ▁in ▁ 1 9 5 7 ▁covered ▁the ▁tw enti eth ▁century ▁and ▁the ▁last ▁volume , ▁published ▁in ▁ 1 9 6 6 ▁covered ▁the ▁material ▁through ▁the ▁end ▁of ▁the ▁ 1 9 th ▁century , ▁summar