Story about an uncle and his mean nephew incorporating two poems, June 1887

Story about an uncle and his mean nephew incorporating two poems. The story tells how, while they were at a market the uncle asked his nephew, whom he had brought up, for a dram but the nephew refused. The uncles's response was the first poem beginning 'Mo chomains agus comain Iain, Mar chomain dist gun cheill'. The uncle asked for a dram again and once more the nephew refused and the reply was the second poem beginning 'Cha b'e comman an da Ghoill, Bu mhath liomsa/leinn dhiana riut'.