So he contracted to work for three months as a chemist in the copper mines in Northern Rhodesia (now Zambia). The facilities where assaying of mineral ore was done were out in the African bush.
अतः उन्होंने उत्तरी रोडेशिया (एब ज़ाम्बिया) में ताँबे की खानों में तीन महीने रसायनज्ञ के तौर पर कार्य करने का ठेका लिया ।