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.
Louisa's but a lassie yet,
Her age is no twice nine;
She lang has been her mammie's pet—
I wish that she were mine!
She's licht o' heart, and licht o' foot—
She's blythe as blythe can be;
She's dear to a' her friends about,
But dearer far to me!
A fairer face I may ha'e seen,
And passed it lightly by;
Louisa's in her tartan sheen,
Has fixed my wandering eye:
A thousand beauties there I trace,
That ithers canna see;
My blessings on that bonnie face—
She's a' the world to me!
Oh, love has wiles at his command!
Whene'er we chance to meet,
The slightest pressure o' her hand
Mak's my fond bosom beat;
I hear the throbbing o' my heart
While nought but her I see;—
When shall I meet, nae mair to part,
Louisa, dear, wi' thee?