The following song, along with musical notation, is contained in Making Music Your Own (Volume 7) By Beatrice Landeck, Silver Burdett Co., 1964, 214.

SONG OF FAREWELL
Austrian Folk Song
Collected by Engel Lund
Arranged by Ferdinand Rauter
[English] Words by Ursula Vaughan Williams

"Now the green leaves grow, tomorrow I must go,
Today I shelter here, then none may know.
In flowers and in garlands I'm clothed today,
Tomorrow without shoe and staff I go away.
This must be my farewell. I will not come again.
Nor shall I leave a footprint light as snow or rain…"

Only "snippet view" is available with Google Book Search, but I was able to piece together several snippets to get the above information. (I reached a dead end at the end of the above quote and have no idea what comes next.)

There is some interesting information about Engel Lund here.