Your copy of Robert Burns' A Man's a Man for A' That appears to me to have left out one line in the final stanza which when entered would make the 5th and 6th lines read:
For a' that, an' a' that,
It’s cuming yet, for a' that,
To A Louse
On Seeing One on a Lady's Bonnet at Church
Ha! whare ye gaun' ye crowlin ferlie? Your impudence protects you sairly; I canna say but ye strunt rarely Owre gauze and lace, Tho faith! I fear ye dine but sparely On sic a place.