TRANSACTIONS 



BOTANICAL SOCIETY. 



SESSION XLVI. 



10th November 1881.— Alex. Buchan, M.A., F.E.S.E. 

 Vice-President, in the Chair. 



The Chaikman made some introductory remarks — 



On the Results of Meteorological Ohservatioiis on the Weathet 

 of the last Summer. 



At the outset he showed by statistics that the last decade 

 had been remarkable for the recurrence of periods of cold 

 weather more or less protracted, the last period being that 

 from October 1880 to the present time. From October 

 1880 to the end of October 1881, there had been thirteen 

 months of continuous low temperature, excepting May, 

 which was above the average. There were no ten years 

 during the last 118 years, except the period from 1780 to 

 1790, in which there had been so many periods of pro- 

 tracted low temperatures as during the decade from 1872 

 to the present date. Much had been done in recent years 

 with the view of endeavouring to throw light upon the 

 coming weather — to prognosticate not only for a few days, 

 but for a few months or a season. A great deal had been 

 done in India, and with some success; and Dr Hann, of 

 Vienna, one of the most distinguished of living meteorolo- 

 gists, has shown that when cold weather set in, the longer 



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