There are no particular signs of "corruption," and the piece is probably superior to Percy's own effusion.
Percy's trumpery commencement is an echo of the beginning of the printed copies of Sir Andrew Barton.
The name Ursine, like that of Orson, is derived from Fr. Ourson, the diminutive of Ours, a bear (Latin, ursus.)]
Part the First.
Then Flora 'gins to decke the fields
With colours fresh and fine,
Then holy clerkes their mattins sing
To good Saint Valentine!
The king of France that morning fair 5
He would a hunting ride:
To Artois forest prancing forth
In all his princelye pride.
To grace his sports a courtly train
Of gallant peers attend; 10
And with their loud and cheerful cryes
The hills and valleys rend.
Through the deep forest swift they pass,
Through woods and thickets wild;
When down within a lonely dell 15
They found a new-born child;