CURIE, Marie Skoldowska (1867-1934). Traité de Radioactivité, Paris: Gauthier-Villars, 1910, 2 volumes, 8°, FIRST EDITION, heliogravure portrait of Pierre Curie, 7 plates, half titles, cloth bound by Geo Winstanley, Manchester (front lower joint of vol. II split, corners bumped). [Sparrow 41] (2)