The role of the autonomic nervous system in controlling ovum transport remains obscure. Although not studied extensively in the oviduct, the para-sympathetic nervous system does not appear to significantly influence ovum transport. The sympathetic nervous system of the oviduct and its pharmacology have been studied more thoroughly. Despite this, little information is available concerning cellular mechanisims of adrenergically altered motility or transport. In spite of much speculation, the weight of evidence suggests that, at least in the rabbit, the sympathetic nervous system plays a minor role in the control of ovum transport.