PRICE DROP
Your inclusion of penicillin in the 50 Giant Leaps in History feature (August 2019), credits Alexander Fleming with the discovery but fails to mention the essential contribution of another individual. Penicillin was actually first discovered by Welshman Dr Merlin Pryce from Merthyr Tydfil. It was he who spotted the mould in the petri dish and alerted Fleming to the unusual deposit when, as you state in the piece, Fleming returned from holiday.
UNSUNG DISCOVERER Fleming gets the credit for discovering penicillin, but what about Merlin Pryce?