Although the image is very faded, the words that can be made out suggest that this writing is from stanza I of The Lady of the Lake (1810) by Sir Walter Scott.
The stanza reads thus:
The stag at eve had drunk his fill,
Where danced the moon on Monan's rill,
And deep his midnight lair had made
In lone Glenartney's hazel shade. But, when the sun his beacon red Had kindled on Benvoirlich's head, The deep-mouthed bloodhound's heavy bay Resounded up the rocky way, And faint, from farther distance borner, We heard the clanging hoof and horn.