Translate the following sentence into Turkish.
He was Dr. Arthur C. Appleton, 72-year-old chief of the central laboratory... where the final secret experiments on Process 97 were being conducted.
Bu, Ísş lem 97'ye ilisş kin en son gizli deneylerin yapìldìgì merkez laboratuvarìn 7 2 yaşìndaki şefi Dr. Arthur C. Appleton 'dì.