Since the "cockle shells" appears in an American version, perhaps the entire original Scottish song should appear here.

WALY, WALY

O Waly, Waly, up yon Bank,
And Waly, Waly, down yon Brea;
And Waly by yon River's side,
Where my love and I was won't to gae.

Waly, Waly, gin Love be bonny,
A little while when it is new;
But when it's auld, it waxes cauld,
And wears away, like Morning Dew.

I leant my back unto an Aik,
I thought it was a trusty Tree;
But first it bow'd, and sine it brake,
And sae did my fause Love to me.

When Cockle-shells turn siller Bells,
And Muscles grow on ev'ry Tree;
When Frost and Snaw shall warm us a',
Then shall my Love prove true to me.

Now Arthur-Seat shall be my Bed,
The Sheets shall ne'er be fyl'd by me;
Saint Anton's Well shall be my Drink,
Since my true Love has forsaken me.

O Martinmas Wind, when wilt thou blaw,
And shake the green Leaves off the Tree?
O gentle Death, when wilt thou come?
And take a Life that wearies me.

'Tis not the Frost that freezes fell,
Nor blawing Snaw's Inclemency;
'Tis not sic Cauld that makes me cry,
But my Love's Heart grown cauld to me.

When we came in by Glasgow Town,
We were a comely Sight to see;
My Love was cled in the black Velvet,
And I my sell in Cramasie.

But had I wist before I kiss'd,
That Love had been sae ill to win;
I'd lock'd my Heart in a Case of Gold,
And pin'd it with a silver Pin.

Oh, Oh! if my young Babe was born,
And set upon the Nurse's Knee,
And I my sell were dead and gane,
For a Maid again I'll never be.

Thomson, 1733, I, opp. p. 71; less simply in [1725]*
a I (inflected VII) {with music}

From Bronson (see post above,) p. 362, Jamie Douglas, Child No. 204. *Orpheus Calidonius
In the discussion by Bronson, he says that it is an unwarranted inference that the song "Waly, Waly" ..."forms , without room for doubt", {as maintained by named authorities} "part of the ballad of "Jamie Douglas." There is, on the contrary, every reason to suppose that the makers of "Jamie Douglas", like the cobbler of "Arthur's Seat," made free use of a popular song to fill out their ballad, and sang the latter to the same tune."