| Description | Thanks Blagden for his entertaining letter. Gives his opinion of aerostatic balloons as more for amusement than utility. The experiment of Mr Cavendish is new to him and most curious and important. Discusses a medical paper he has received by Dr Clare on the use of a mercurial ointment. Discusses his plans for a pond in his garden for gold and silver fish and for a fountain ("jet d'eau") |