RAdhy, 1, 352.1 nālaṃ ca gostanākāraṃ madhye vartulakairdhṛtam /

UḍḍT, 15, 13.6 masṛṇakarpaṭaṃ nirmalakāṃsyabhājane 'rkasammukhaṃ sthāpanena vartulakayogād agnir uttarati //