THE MEASUBEMENT OF BAIN. 



19 



SWINESHAW BROOK. 



RAIK, AND DEPTH OP WATER FtOWINO 0»F aBOUND. 



The extent of ground draining to the point at which the Tolume of tho 

 stream is measured is 1250 statute acres. 



Baix. 



Flow. 



1845. 



5^^ 



?; ♦» 











January... 

 February . 



March 



April 



May 



Jiuoe 



July 



August .... 

 September 

 October... 

 November 

 December 



2 6 



2 8 

 4 3 



3 



4 

 3 



10 



In Dec. 



3 1 



1 8 

 5 5 



4 7 



14 8 



4 1 



5 9 

 4 



11 



6 

 9 6 

 3 2 



In. Dec. 



3 



21 2 



4 7 



10 



3 7 



11 



38 6 



Deo. 



668 

 764 

 892 

 424 

 436 

 364 



13 648 



3 048 



7 236 

 2 736 



4 608 

 2 904 

 6 624 



27 166 



Depth of rain in first six months 21 '2 inches, of which 

 there flowed off the ground 13*548, or nearly two-thirds. 



Depth of rain in last six months 38*6 ins., of which there 

 flowed off the ground 27*156 ins., or nearly three-fourths. 



Rain tor the whole year 59*8 ins., of which there passed 

 down the brook 40*704, or upwards of two-thirds. 



It is possible that in this year the fall of rain has been 

 registered too high, in consequence of comparative inatten- 

 tion to the index rod.— The fall of rain in other places 

 was just an average. 



