Leeches as weather predictors? It could have happened, had George Merryweather of Yorkshire, England been more successful in marketing his Tempest Prognosticator, a fanciful, annelid-powered device. Good Natured: Leeches July 12, 2019 “Say Pam, how’s that leech of yours doing?” said no Good Natured reader, ever. But, just for conversation’s sake, let’s say someone did