THE fortieth anniversary of the discovery of radium is the occasion for the issue in France of a special postage stamp in honour of the discoverers, Pierre and Marie Curie. Their lives and characters have been well revealed by their daughter Eve Curie, who wrote that her mother did not know how to be famous, while Einstein declared that Mme. Curie alone of famous people was unspoiled by prosperity. Her other daughter, Irene, has carried forward the illustrious scientific work of her parents by her discovery, with her husband, Prof. Joliot, of 'artificial' radioactivity. The stamp, printed in blue, is excellent in design and carries faithful portraits, as may be seen by the accompanying reproduction. It carries a surtax of half a franc for the benefit of the “Union Internationale contre le Cancer”. On its merits, this stamp should have a wide appeal, enhanced by the desire to aid in the fight against a baffling disease.