He was replaced by Derick Heathcoat Amory , previously Minister of Agriculture , Fisheries and Food .
Peter Thorneycroft became Chancellor of the Exchequer , but caused embarrassment for Macmillan when he resigned only a year later .
Macmillan was replaced by Derick Heathcoat Amory , previously Minister of Agriculture , Fisheries and Food .
Peter Thorneycroft became Chancellor of the Exchequer , but caused embarrassment for Macmillan when he resigned only a year later .