subdivisions in force in the Alpine countries are insired by some different rules and area sometimes in contrast with themselves. Therefore he proposes an only new mountain subdivision, the ISMA (the result of a systematic study of the whole alpine orography
during several years), in which all mountain groups of the national Alpine subdivision are finally classified with the same rule in a pyramidal hierarchy and which can be considered a new modern reading-key of the complex orography of the Alps. - (NF)