The Shulbasutras of Baudhayana, Apastamba, Katyayana and Manava: With Text, English Translation and Commentary c8.t27.3

c8.t27.3

**15.2.** In the falcon-shaped fire-altar, a head is to be provided, the tail should be spread out and each wing must be curved. According to rule 15.2, the curving of the wing is to be done by pushing the west side upwards and the east-side downwards. Karavinda explains that what actually should be done is to raise upwards towards east the first half of the wing from its root at the body to the middle and to press downward towards west the second half from the middle to the end. (*prathama pakṣārdhaṃ mūlādārabhya paścātprabhṛti prāgunnayet |.. dvayaṃ pakṣārdhaṃ madhyādārabhya purastāt prabhṛti pratyagunnayet |*). The method is further explained in rule 15.6.