Regarding the "sweepings" of gold, an explanation was given at the Jewellery Quarter Museum some years ago. The washbasins drained into sawdust which was saved, and the legs of the stools had small quantities sawn off periodically. The stools gathered minute amounts of gold, as did the washing water. The sawdust was dried out and burned with the slivers of leg and the gold was retrieved!! (They had to build up the seats of the stools with as they got shorter with layers of thin wood!)
rosie.