A class on Bhagavad Gita 1.15 given by His Divine Grace A.C. Bhaktivedanta Swami Prabhupada on July 15, 1973 in London.
Bhagavad Gita 1.15
pāñcajanyaṁ hṛṣīkeśo
devadattaṁ dhanañ-jayaḥ
pauṇḍraṁ dadhmau mahā-śaṅkhaṁ
bhīma-karmā vṛkodaraḥ
Lord Kṛṣṇa blew His conchshell, called Pāñcajanya; Arjuna blew his, the Devadatta; and Bhīma, the voracious eater and performer of herculean tasks, blew his terrific conchshell, called Pauṇḍra.