OBSERVATIONS. 6^ 



My rain-gage is placed on the garden wall, at 

 a sufficient distance from any higher object, and 

 is about 12 feet above the ground. The funnel, 

 which is six inches in diameter, is of sheet 

 copper, with a perpendicular rim three inches 

 high. On the mean of the eight years, the 

 annual fall of rain in this township is 34.00 

 inches ; but this amount is probably somewhat 

 too small, as Mr. Dalton invariably makes the 

 annual fall for Manchester greater than I make 

 it for Crumpsall: the difference, which some- 

 times exceeds six inches, may, in part, be at- 

 tributed to the circumstance of my gage being 

 considerably more elevated than Mr. Dalton's : 

 so great a discrepance, however, can hardly be 

 referred to this cause alone. Mr. Dalton has 

 suggested, that in stormy, wet weather, high 

 winds, by impinging against the wall on which 

 the gage is fixed, may have their direction al- 

 tered in such a manner as to diminish the quan- 

 tity of rain that falls into the funnel ; and in 

 this opinion I entirely coincide. It appears, on 

 inspecting the monthly means, that in the first 

 six months of the year, much less rain falls, on 

 an average, than in the last six; every month 

 in the former period producing a smaller quan- 

 tity than any one in the latter ; and that, in the 

 township of Crumpsall, February is the driest, 

 and July the wettest month in the year. The 



