Note 3 — ADDENDA.
Reading edition
M. Charpentier (in his account of M. Venetz’s investigations on the Glaciers of the Valais—Edinburgh New Philosophical Journal, vol. xxi., p. 215) was fully aware of this difficulty. His explanation rests on a supposed enormous oscillation of level in the Alps,—an assumption which is unsupported by other facts, and is not applicable to the general case of Europe.