Thomas L. Johnston
Thomas Lothian Johnston FRSE was a Scottish economist. He was professor of Economics at Heriot-Watt University in 1966–1976. He was the
President of the Royal Society of Edinburgh in 1993–1996. In 1985 Johnston was elected a Foreign Member of the Royal Swedish Academy of Engineering Sciences.
Johnston was the Principal of Heriot-Watt University from 1981 to 1988 and received an Honorary Doctorate from the University in 1989
