Adversus naturam peccantes.[1]

Those sinning against nature.

Turpe quidem factu, sed & est res improba dictu,[2]
Excipiat si quis Choenice ventris onus.
Mensuram legisque modum hoc excedere sanctae[3] est
Quale sic[4] incesto pollui adulterio.

It is certainly foul as a deed but also a wicked thing to speak of, if someone were to empty the burden of his bowels into a bushel-box. This means exceeding the measure and limit of divine law as it would be defiled by impure adultery.