Auricles I

File contains a notebook with the title on the front, "Isolated Guinea Pig Auricles. Refractory Period Measurements". The spine of the notebook has the words, "Auricles 49-50". The notebook is made up of graph paper on one side of a double page which is sometimes used to plot experiment results and on the facing page is usually a table of test data. Only rarely is there written commentary on the results. The first dated experiment is 24 October 1949 and the last is 12 June 1950.