While meteorological observations taken in deep narrow valleys are open to grave objection for many meteorological purposes, including the drawing of isobaric and isothermal charts, yet the study of the climatic features in such a locality presents several points of special interest. This is more notably the case in the present instance owing to the close proximity of the Ben Nevis Observatory and the low-level Observatory at Fort-William. As the latter was only about 4½ miles distant from the valley station, the peculiarities of the climatology of Glen Nevis could be studied with a confidence which would have been unattainable without this adjoining sea-level station.