Inferior to angelical, they prolong 205
Their curious pastime, shaping in mid air,
And sometimes with ambitious wing that soars
High as the level of the mountain tops,
A circuit ampler than the lake beneath,
Their own domain;—but ever, while intent 210
On tracing and retracing that large round,
Their jubilant activity evolves
Hundreds of curves and circlets, to and fro,
Upwards and downwards, progress intricate