Astanga Hrudaya
मुद्गं माषं कलायं च क्लिन्नं कर्कन्धुकं क्रमात्। मूलाच्छिद्रप्रमाणेन प्रान्ते घटितकर्णिकम्॥१४॥
Near the office at its root, a Karnika- ear-like ridge of this same size of the orifice should be constructed - at the time of preparing the nozzle, another second Karnika-
english translation
mudgaM mASaM kalAyaM ca klinnaM karkandhukaM kramAt। mUlAcchidrapramANena prAnte ghaTitakarNikam॥14॥
hk transliteration by Sanscript