An English manufacturing chemist and meteorologist who was the first person to devise a successful classification system for clouds, which he published in 1803 as a paper, ‘On the Modifications of Clouds’. Howard defined four main and several secondary cloud types, calling the main types ‘stratus’, ‘cumulus’, ‘cirrus’, and ‘nimbus’. He became very well known and his classification system forms the basis of the one used today. Howard lived in London.