The most eager alighted on the cover, trampling on one another, jostling one another, trying to get the best places.

On the other side of the barrier the captive, her great body hanging against the wire, waited immovable.

She betrayed not a sign of emotion in the face of this turbulent swarm.
Going and entering, perched on the cover or fluttering round the room, for more than three hours they continued their frenzied saraband.

But the sun was sinking, and the temperature was slowly falling.

The ardour of the butterflies also cooled.