THE establishment of the Anti-Locust Research Centre at the British Museum (Natural History) marks an important step in solving problems of locust control. One of the main functions of that organisation has been the assembling and recording of reports on the breeding and migrations of locusts in Africa and Western Asia. No fewer than 7,986 reports have been received from the Governments of the territories in these areas up to the end of 1945. The collation and sifting of the data thus acquired entails a large amount of detailed work, which as ultimately incorporated in the publications of the Anti-Locust Centre. These latter are planned in two series. First, memoirs of quarto size adapted for the publication of detailed charts, etc., devoted to biogeographical and bioclimatic papers; secondly, bulletins intended for the publication of papers on all other aspects of locust and grasshopper research and control. Up to date, two memoirs have appeared and a third is in the press. The first of the bulletins is also in the press.