It has for some time been the design of the Council of the Scottish Meteorological Society to establish on Ben Nevis a third observing station, supplementary to those at the summit and at Fort-William; and in the autumn of last year this design was partially realised. A site was not acquired so easily as might have been expected; but, after some disappointment, the Council, on the advice of Dr Buchan, who in person inspected the ground, fixed upon the best situation obtainable in the circumstances. Before the end of August the observer was in residence, but as the barometer did not arrive till the last day of the month, the complete record of observations extends only from the 1st to the 23rd September—23 days in all. The total number of readings taken was 186, an average of slightly more than 8 every 24 hours. Six of those observations were made at the hours of 9, 10, 12, 14, 18, and 21, while additional readings ran in a regular series between those fixed periods; thus accumulating a mass of facts for all times of the day and in various kinds of weather. The gaps are accounted for by the fact that, combined with my meteorological duties, were the functions of cook and maid-of-all-work, which occasionally rendered it impossible for me to leave the base of operations. Further, it was set down in my instructions that it was unnecessary to go out during continued bad weather, except at the statutory periods above mentioned; and that, in the event of extra readings being required during storms, a message would be sent from head-quarters.