ɪnðə mˈɪd nˈaɪntiːnhˈʌndɹɪd twˈɛnti z hiː ˌʌndɚtˈʊk fˈɜːðɚ stˈʌdiz æt ðə jˌuːnɪvˈɜːsᵻɾi ʌv lˈaɪpsɪɡ ɪn ɛθnˈɑːlədʒi ænd saɪkˈɑːlədʒi, wˌɛɹ hiː fˈɜːst dɪvˈɛləpt hɪz ɐbˈaɪdɪŋ ˈɪntɹɛst ɪnðɪ ɪndˈɪdʒənəs kˈʌltʃɚz ʌvðɪ ɐmˈɛɹɪkəz.
In the mid-1920s he undertook further studies at the University of Leipzig in ethnology and psychology, where he first developed his abiding interest in the indigenous cultures of the Americas.