This text comes from The Book of Scottish Song, edited by Alexander Whitelaw, a historical songbook transcribed on Wikisource and reproduced from the pinned revision linked below.
Fare thee weel, thou bonnie river,
Rowin' by my ain Dundee;
Aft in days gane by for ever,
Thou hast borne my love and me.
Thou hast heard, in days departed,
Vows that nane could hear but thee;
Now thou seest me broken-hearted—
Tay, adieu! adieu, Dundee!
On thy waves a light is fa'in',
Ruddy as the rose in June;
Some may trow it is the dawin'
Glinting frae the lift abune:
But I ken thou'rt only blushing
That a maid so false could be!
Like thy springs my tears are gushing—
Tay, adieu! adieu, Dundee!