Extinct glaciers of the alps and their chronological relation to the human period.

EXTINCT GLACIERS OF SWITZERLAND—ALPINE ERRATIC BLOCKS ON THE JURA—NOT TRANSPORTED BY FLOATING ICE—EXTINCT GLACIERS OF THE ITALIAN SIDE OF THE ALPS—THEORY OF THE ORIGIN OF LAKE-BASINS BY THE EROSIVE ACTION OF GLACIERS, CONSIDERED—SUCCESSIVE PHASES IN THE DEVELOPMENT OF GLACIAL ACTION IN THE ALPS—PROBABLE RELATION OF THESE TO THE EARLIEST KNOWN DATE OF MAN—CORRESPONDENCE OF THE SAME WITH SUCCESSIVE CHANGES IN THE GLACIAL CONDITION OF THE SCANDINAVIAN AND BRITISH MOUNTAINS—COLD PERIOD IN SICILY AND SYRIA.