Read "Plutarch's Natural Questions" by Plutarch online for free on Textopian. Full text with search, annotations, highlights, and AI-powered reading aids.
Is it because they contain much spirit, by reason of their confusion and mixture with the air? And the spirit moving the humor sends it more upwards.
Or is it because heat fighting against cold causes thunder and lightning? Whence it is that it thunders very little in winter, but in spring and autumn very much, because of the inequality of temper; and the heat, concocting the humor, renders it friendly and commodious for plants.