ðɪ ˈɛndbˈʌlbz ʌv kɹˈɔːz wɜː θˈɔːt təbi θˈɜːməɹˌɛsɛptɚz, sˈɛnsɪŋ kˈoʊld tˈɛmpɹɪtʃɚz, bˌʌt ðɛɹ fˈʌŋkʃən ɹᵻmˈeɪnd ʌnnˈoʊn.
The end-bulbs of Krause were thought to be thermoreceptors, sensing cold temperatures, but their function remained unknown.