be a blank on the subject of

be a bear for punishment be a cup too low be a dead loss be a different breed of cat from be a dig at be a disgrace to be a famous hand at be a fool for be a fool to oneself be a good blade be a good judge of Be a good sport

Ferrg-Porter law ferri ferri filum ferri oxide ferri- ferri-albuminic ferriage ferriammonium chromate ferriammonium sulfate ferriamphibole