Even in the force and road of casualty.[228]

When King Duncan arrives at the Castle of Inverness, and is delighted with the situation of the building and the pleasantness of the air, Banquo calls his attention to the numerous nests of the house-martin as evidence of the salubrity of the climate:

This guest of summer,

The temple-haunting martlet, does approve,

By his loved mansionry, that the heaven’s breath

Smells wooingly here: no jutty, frieze,

Buttress, nor coign of vantage, but this bird

Hath made his pendent bed and procreant cradle:

Where they most breed and haunt, I have observed

The air is delicate.[229]