Construction of Martello towers to protect the coasts of south east England and Ireland against the threat of French invasion is begun, together with (from 30 October) the Royal Military Canal.[6]
Dr Joseph Mason Cox publishes Practical Observations on Insanity; in which some suggestions are offered towards and improved mode of treating diseases of the mind, and some rules proposed which it is hoped may lead to a more humane and successful method of cure.[8]