 In 1942 the wartime Secretary of State for Scotland, Tom Johnston, asked Fraser Darling if he would run an agricultural advisory programme in the crofting areas of the Scottish Highlands and Islands.He agreed, and for two years he travelled, taught and wrote articles that were later published in book form as "Crofting Agriculture".The pagan-cult island of Summerisle featured in the motion picture "The Wicker Man" (filmed 1973) is thought by some film critics to be set in this archipelago, although the movie itself was filmed in Galloway and Skye.