A US$2.2-million bequest from the estate of a venerated US chemist will support early-career female chemists over the next 20 years. Recipients of the Marion Milligan Mason Award for Women in the Chemical Sciences will receive $50,000, which may be used for laboratory supplies and equipment; publication costs; computer and technical support; and attendance at meetings. Applicants must have a tenure-track post at a US PhD-granting institution and must be US-born, naturalized citizens or permanent residents. The awards are administered by the American Association for the Advancement of Science in Washington DC. Applications are due by 15 September, and winners will be announced by May 2015.