INTODUCF1ON SCHISTOSOMES that infect domestic animals are of great economic importance, and may even cause death in cattle and sheep.' These parasites may also at times infest man, the most important of the several species being Schistosoma haematobium and Schistosoma mansoni. They are the subject of the present discussion. Both these parasites have a complicated, but similar, life cycle. Matur...

Since antiquity hermaphrodites have fascinated the mind and excited the imagination. In this paper, such subjects are discussed as legends about the nativity of Hermaphroditus, son of Hermes and Aphrodite, the social status of these bisexual beings, and their fate in Greek-Roman antiquity.