Two black and white photographic print of electron tracks in the Wilson cloud chamber
1937-1948
1937-1948
1931
1928-1932
1936-1938
1945-1947
1925; 1937
1945-1949
1930
1937
1927-1937
1935-1937
1950-1960
1950
1947; (1946-07-24)
1931
1927-1937
1960-1970
1930-1937
1936
1932
1932-1937
1912-1914
1937
1954
1870
1939-1947
1936
1912-1937
1954
1920-1930
1947; (1946-07-24)
1935-1937
1951
1937-1948
1870
1920-1930
1937
1945-1947
1930-1937
1933-1937
1945-1947
1932
1933-1937
1937
1930-1937
1945-1949
1931-1937
1913-1937
1930-1937
1935-1937