Business was quiet for the season.

[T]he Lunar Society of Birmingham […] aimed to develop knowledge useful to an industrialising society and included among its luminaries the potter Josiah Wedgwood (1730–95), the physician William Withering (1741–99), the chemist Joseph Priestly and James Watt.

مَرَاثٌ and ↓مَرْوَثٌ (M., Ḳ) The part whence the رَوْث (or dung) issues; (M;) the خَوْرَان [i.e. rectum, or the tuel,] of a horse. (Ḳ.)

In some way, not clearly understood, hydrothermal action metasomatizes the original andesite without destroying original textures or changing volumes.