542 Mr Hargreaves, The Harmonic Expression of the 



and accordingly the %</ functions tabulated in (B) contain the 

 correction for the varying distance of the sun. For abbreviation 

 $ is written for 2irt. The even terms give no difference between 

 northern and southern hemispheres, for % s ' the sign is to be 

 changed throughout for the southern hemisphere, for Xi Wl ^ 

 both odd and even terms, the effects are more complicated and 

 results given for both hemispheres. 



(A) Table of %'s expressed as harmonic functions of sun's 

 longitude measured from the vernal equinox. 



