matter are interspersed among the nerve fibres. To the above general sketch, which has been based on the synoptical description of _Chrobak von Rosthorn_, must be added a more detailed account of the innervation of the ovaries, this branch of the subject being of especial importance. The nerves of the ovary are derived from the sympathetic system, in part from the spermatic ganglion, in part from the second renal ganglion, and in part from the superior mesenteric plexus. The nerves of the ovary are for the most part vascular nerves, which unite before entering the ovary to form the ovarian plexus, and then pass into the hilum with the vessels, envelop the vessels of the medullary layer, and thence pass to the follicular region; exceedingly numerous, they form a close-meshed network, surrounding all the vessels up to the finest capillary ramifications; those fibres which terminate in the capillary walls and those also which reach the follicles are regarded by _Riese_ as sensory. The great trunks of the uterine nerves are transversely disposed in relation to the great lateral vessels of the uterus, and passing inward toward the mucous membrane they break up into pencils of filaments; the uterine nerves proper are distributed for the most part to the muscular substance. In the Fallopian tubes, the nerves form arches around the lumen of the tube; some fibres also pass to the longitudinal folds of the mucous membrane. This expansion of the nerves of the cerebrospinal and sympathetic systems in the female reproductive organs manifests the multiple interconnection of the two systems in this region, and proves beyond doubt that the sensory nerves of the genital organs have manifold connections with the motor tracts of the whole organism on the one hand and with the sensory ganglia of the central nervous system on the other, and in addition with the vasomotor centres and with efferent motor and secretory fibres.