Meteorology. 497 
- Now; by blending these 17 years’ with the 
8 years before referred to, we obtain the 
mean monthly averages for 25 years, as 
under: namely, 
Inches. 
January..... 2.258 
February... 2.507 
March...... 2.112 
April stemware 1.915 
May. svegesrs 2.095 
June... ..00- 2.206 
July......... 3.400 
August...... 3,307 
September.. 2.984 
October..... 3.734 
November.. 3.378 
December.. 3.369 
Total. .«sis 35. 868 
I think there is reason to bidionis that if 
we had the averages for a century, they 
would not be materially different from these, 
either in regard to the relative monthly quan- 
tities or to the annual quantity. . 
It may be proper, however, to observe, that 
thelate Mr. George Walker, of Salford, gives: 
an account of the rain at Manchester, for 
the 9 years immediately preceding the above 
period of 25 years, in the Memoirs, Vol. 4, 
page 585:—His observations have been in-. 
corporated with mine, so as to-extend the: 
VOL. 11. Rrr 
