To all those which have been described, the season of spring was
most inimical, and proved fatal to the greatest numbers: the summer
was the most favorable to them, and the fewest died then; in autumn,
and under the Pleiades, again there died great numbers. It appears
to me, according to the reason of things, that the coming on of summer
should have done good in these cases; for winter coming on cures the
diseases of summer, and summer coming on removes the diseases of winter.
And yet the summer in question was not of itself well constituted,
it became suddenly hot, southerly, and calm; but, not withstanding,
it proved beneficial by producing a change on the other constitution.