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>On the double Organs of generation of the lamprey, the conger eel, the common eel, the barnacle, and earth worm, which impregnate themselves; though the last from copulating, appear mutually to impregnate one another
【2h】
On the double Organs of generation of the lamprey, the conger eel, the common eel, the barnacle, and earth worm, which impregnate themselves; though the last from copulating, appear mutually to impregnate one another
