128 



DIURNAL INEQUALITIES. FOURIER COEFFICIENTS. 



Taking means from the four elements, we should infer that in the Antarctic the relative importance 

 of the 12- to the 24-hour wave is but little dependent on the season of the year. The 8-hour and 6-hour 

 waves seem, however, of greatest relative importance at Midsummer, which is the exact opposite of what 

 occurs at Kew. 



TABLE XLIII. Ratios of the Amplitudes of the 12-, 8- and 6-hour Fourier Waves to that of the 



24-hour Wave. 



