Memo on the importance of buckthorn in war efforts Memo from the National Trust in response to a scheme from [the Ministry of Agriculture] to drain Adventurers' Fen for food production. Protests that the Fens are the only area where buckthorn grows, and cites its value to the nation as a vital component of time fuses for anti-aircraft shells. Points out the loss to the Trust of its areas of research and conservation as well. [1941]