Porton Down Gruinard Island Nancekuke Operation Vegetarian (1942–1944) Open-air field tests: Operation Harness off Antigua, 1948–1950. Operation Cauldron off Stornoway, 1952. Operation Hesperus off Stornoway, 1953. Operation Ozone off Nassau, 1954. Operation Negation off Nassau, 1954–5.
porton down gruinard island nancekuke operation vegetarian (1942–1944) open-air field tests operation harness off antigua 1948–1950 operation cauldron off stornoway 1952 operation hesperus off stornoway 1953 operation ozone off nassau 1954 operation negation off nassau 1954–5