306 TRANSACTIONS OF ROYAL SCOTTISH ABORIOULTURAL SOCIETY. 



REPORTS BY THE HONORARY 

 SCIENTISTS. 



1 . Report on the Meteorology of Scotland for the Year ending 

 30th September 1900. By R. C. Mossman, P.R.S.E., 

 F.U.Met. Soc, Honorary Consulting Meteorologist. 



The following condensed abstract of the prevailing meteoro- 

 logical conditions over Scotland during the year under review 

 is principally based, as formerly, on Dr Buchan's reports and 

 accompanying statistical data supplied to the Registrar-General 

 of Scotland. The monthly summaries of the London Meteoro- 

 logical Office have also been utilised, in addition to those taken 

 for the Scottish Meteorological Society. 



The averages with which the monthly means have been com- 

 pared are for the period 185G-1900, except during the last 

 quarter of 1899, when the means available were for the forty 

 years ending with 1895. As comparatively few of the stations 

 are provided with sunshine recorders, the remarks on this element 

 of climate are not so representative of the country, as a whole, as 

 are those for temperature and rainfall. 



Remarks on the Weather. 



October 1899. — The weather of October was for the greater 

 part fair and dry, with a rather high mean temperature and a 

 deficiency of l-ainfall. The mean temperature, on the average of 

 sixty-seven stations well distributed over the country, was 47° -8, 

 or 1°'4 above the normal. The highest values were 50° - at 

 Ballachulish, 49 0, 8 at Airds, and 49°'7 at Leith ; and the lowest, 

 44°-7 at Benquhat, 45 =, 1 at Braemar, and 45°-7 at Lednathie. 

 The mildest weather was thus experienced at stations where the 

 prevailing westerly winds blew directly off the sea, the lowest 

 temperatures being recorded at inland or elevated positions. The 

 average rainfall was 3-10 inches, or 23 per cent, below the 



