One was closed, the other open day and night.

The butterfly was placed in the shade, between the lines of the two windows, at a distance of 12 or 15 feet.
The rest of that day and the next went by without any occurrence worthy of notice.

Hanging by the feet to the front of the wire cover, on the side nearest to the light, the prisoner was motionless, inert.

There was no oscillation of the wings, no tremor of the antennae, the female of the Great Peacock behaved in a similar fashion.
The female Bombyx gradually matured, her tender tissues gradually becoming firmer.

By some process of which our scientists have not the least idea she elaborated a mysterious lure which would bring her lovers from the four corners of the sky.