Time series analysis by John Nye regarding the advance and retreat of glaciers in the Swiss Alps Datasets and calculations collected by Nye for his research into the advance and retreat of glaciers in the Swiss Alps. The folder includes some correspondence with Peter Kasser and Hans Rothlisberger at the Abteilung Fur Hydrologie und Gaziologie in Zurich, concerning Nye's requests for data. A later note by Nye (dated 18 April 2015) explains that the research was looking at whether the mass balance of glaciers in a given reason could be calculated from the data on their advance and retreat. 1967-2015