Note 198 — THE PORTER AND THE THREE LADIES OF BAGHDAD.

Incest is now abominable everywhere except amongst the overcrowded poor of great and civilised cities. Yet such unions were common and lawful amongst ancient and highly cultivated peoples, as the Egyptians (Isis and Osiris), Assyrians and ancient Persians. Physiologically they are injurious only when the parents have constitutional defects: if both are sound, the issue, as amongst the so-called "lower animals," is viable and healthy.