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REFLEXIONS on METEREOLOGIC AL TABLES. 

 By RICHARD KIRWAN, Efq; F.R.S. and M.RLA 



In my former paper on this fubjedl I endeavoured to fliew Read July 

 one important purpofe to which the obfervations of a number ^3) '793- 

 of years already made by Dodor Rutty might be applied, but 

 found myfelf not a little embarrafled by the undefined tife of 

 the terms wet. and dry, fo frequently applied to the periods 

 obferved. To remove this embarrafTmeiit I meafured the quan- 

 tity of rain, and obferved its duration during fome of the 

 periods that are decidedly deemed ivet, both here and in 

 England, and have thereby been enabled to fix in fome mea- 

 fure the fenfe of thefe terms ; for I have obferved that calling 

 the day that fpace of time during which men are ufually occu- 

 pied in the open air, viz. from fix o'clock in the morning to 

 fix in the evening, we account a day ivet if it rains above half 

 that period, that is fevcn hours, and if the quantity of rain 



that 



