THE MEASUREMENT OF EAIN. 

 SWINE SHAW BROOK.— 1847. 



19 



Rain. 



1847. 



January 



February,... 



March 



April 



May 



June 



July 



August 



September.. 



October 



November... 

 December... 



WhcJ.e Year 



1 7 



4 4 



1 7 



4 



6 8 



3 5 



22 1 



24 6 



46 6 





1 8 



3 9 



1 4 



5 1 



8 



3 7 



23 9 



28 2 



62 1 



1 75 

 4 15 

 1 55 

 4 55 



7 40 

 3 60 



23 00 



1 55 



3 25 

 6 25 



4 20 

 4 40 

 6 70 



26 35 



49 35 



Flow. 



■3>S 



P. »; bo 

 ►-" o o 



18 2 



1 3 



1 



3 3 



3 2 



4 

 6 1 



18 9 



37 1 



The fall of rain during this year was about an average, in 

 some places rather more. It fell, however, very unequally, the 

 last three or four months making up for previous deficiency. 



The proportion of the water flowing off the ground to 

 that which fell, was about 3 to 4. The quantity of the rain- 

 fall which was lost to the river, was about 12 ins. : that being 

 apparently the annual amount required for evaporation, the 

 supply of vegetation, and absorption by the ground, in a 

 year of averse rain. 



The springs in this valley are very copious; and though 

 neither the fall of rain, nor the average volume of the 

 stream, are equal to the Longdendale district, yet the supply 



