THE 



SCIENTIFIC PROCEEDINGS 



OF THE 



ROYAL DUBLIN SOCIETY. 



Vol. SII. (ES.), lo. 30. MAT, 1910. 



ON THE DISTRIBUTION OF MEAN ANNUAL 

 EAINFALL AND AVERAGE NUMBER OF 

 RAIN DAYS PER YEAR OVER AN AREA 

 INCLUDING THE COUNTIES OF DUBLIN, 

 WICKLOW, KILDARE, AND MEATH : A 

 STUDY IN LOCAL VARIATION OF RAIN- 

 FALL. 



BY 



WILLIAM J. LYONS, B.A., A.R.C.Sc. (Lond.), 



KOYAL COLLEGE OF SCIENCE FOE IRELAND. 



[communicated by pkopessoe w. beown, b.sc 



il 

 (PLATE XXI.: MAP.) 



[A ufhors alone are responsible for all opinions expressed in their Gommunicalions.} 



DUBLIN : 



PUBLISHED BY THE EOYAL DUBLIN SOCIETY, 



LEINSTER HOUSE, DUBLIN. 



WILLIAMS AND NORGATE, 



14, HENfilETTA STEEET, COVENT GARDEN, LONDON, W.C. 



1910. 



Price One Shilling. 



