ON June 11, in the Museum of the History of Science, Oxford, the new window commemorating the gifts of the Mercers', Grocers' and Merchant Taylors' Companies, the Royal College of Physicians and of the Friends of the Old Ashmolean, was unveiled by the Vice-Chancellor in presence of a large and representative audience. Before the unveiling, speeches were made in the Divinity School by Sir Cecil Clementi, Sir Henry Norbury, Dr. R. Hutchison and Dr. G. D. Parkes and also by the Vice-Chancellor. The new window is placed at the bottom of the staircase of the Museum next to a similar window unveiled by Lord Birkenhead about nine years ago. At the top is represented the arms of Dr. R. T. Gunther, the present keeper and virtual founder of the Museum as it has now become. Below this are represented the arms and crests of the City Companies mentioned and the arms of the Royal College of Physicians.