'For who will seize this opportunity
To run barefooted and fancy free,
And but frolic amongst her meadows
Beneath those shaded crooked trees'
^
This end stanza is a beautiful one. I can see myself doing this on warmer days be wise he grass beneath your bare feet is a lovely feeling but there's too much dog mess around here lol.
That will stop you in your tracks
And but make you stop and stare
^
I feel this line would be better without 'and but' because you have already said you will be stopped in your tracks, you are just saying what's going to happened once stopped. How about using because of just taking them out altogether, if you feel it works.