Page:Scientific Memoirs, Vol. 2 (1841).djvu/72

60 With this view the mean values for every twelve months have in the first place been calculated. They are:

These mean values correspond to the middle day of each year of observation, i. e. to the 1st of October 1834; and so forth.

The comparison of the separate months of each year with the corresponding mean value, gives the following differences:

Declination, 1,

The numbers in the last column, being mean values deduced from three years' observations, are freed in some degree, though