Correspondence between John Nye and Egon Orowan Correspondence concerning plasticity and glacier flow, in particular the publication of Nye's work. Also contains some correspondence between Orowan, David Christie Martin at the Royal Society and others, concerning a government grant awarded to William Vaughan Lewis for an expedition to alpine glaciers. Lewis can no longer undertake the expedition for medical reasons, and the money was used to cover Nye and John Glen's expedition to Mer de Glace and Switzerland to carry out the planned research. 1950