In most cases two distinct maxima and minima occur in the 24 hours.
And intended to eliminate irregular changes, but they also to some extent eliminate regular changes if the hours of maxima and minima or the character of the diurnal variation alter throughout the year.
The Two Minima Occur, The One From 5 To 7 A.M., The Other From 7 To 8 P.M.; They Are Nearly Equal.
Conrad (22) Found Somewhat Similar Results For Q, The Principal Maximum Occurring At I P.M., With Minima At 9 P.M.
The elementary parts of existence are the minima, or monads, which are at once material and mental.