2. The Branch has throughout worked in close co-operation with the Department of Scientific and Industrial Research, the Agricultural Research Council and the Bureau of Animal Population at Oxford. It has the advantage of the most recent scientific knowledge. Adequate supplies of poisons, red squill, etc. have also been secured and are ready for distribution. 3. Method of Operation. Apart from general intensification of effort through- out the country it is proposed to use what is known as the "block system.