In the next line it 'whispers through the trees:'

If crystal streams 'with pleasing murmurs creep,'

The reader's threaten'd—not in vain—with 'sleep.'

Then at the last and only couplet, fraught

With some unmeaning thing they call a thought,

A needless Alexandrine ends the song,

That like a wounded snake, drags its slow length along.

Leave such to tune their own dull rhymes, to know

What's roundly smooth, or languishingly slow;

And praise the easy vigour of a line