English philosopher who introduced the theory of the association of ideas (1705-1757)
"Many scholars attribute the early formulation of psychological association to Hartley, whose eighteenth-century experiments laid the groundwork for later behavioral theories."
A unit of information (symbol Hart) representing the information content of an event if the probability of that event occurring is 1/10. It is therefore equal to the information contained in one decimal digit
"The cryptographer explained that encoding a single decimal digit adds exactly one hartley of uncertainty to the message, making it equivalent to one unit of decimal information."
A village in Cumbria, England.
"During our road trip across northern England, we stopped for lunch in Hartley before continuing north to Lake Windermere."