. Endocrinology. ransplantation This method of producing experimental hermaphroditism I took up in 1914. Through a small incision in albuginea testis the ovary is placed in the middle of the testis by a delicate pincette. No suture is Preliminary experiments on rats 294 ENDOCRINOLOGY OF SEXUAL GLANDS showed that the ovary, even with comparative ease, grows intothe testis itself and can develop here and form corpora lutea in amature as well as in an infantile testis. Also it was found thata testis, inclosing an ovary, can still develop further to fullspermatogenesis or preserve a spermat
. Endocrinology. ransplantation This method of producing experimental hermaphroditism I took up in 1914. Through a small incision in albuginea testis the ovary is placed in the middle of the testis by a delicate pincette. No suture is Preliminary experiments on rats 294 ENDOCRINOLOGY OF SEXUAL GLANDS showed that the ovary, even with comparative ease, grows intothe testis itself and can develop here and form corpora lutea in amature as well as in an infantile testis. Also it was found thata testis, inclosing an ovary, can still develop further to fullspermatogenesis or preserve a spermatogenesis already short; it was found possible to preserve ovariotestes in whichboth gonads thrive well in the most intimate union without anyreciprocal hindrance. The actual endocrine results from experiments on guinea-pigs were the production of experimental hermaphroditism withbisexuality in somatical and psychical characters as describedabove. Fig. 19 shows an artificial ovariotestis of this Fig. 19 Artifloial ovariotestis, produc- is experimental hermaphroditism 1 an infantile guinea-pig (No. 217). Thus new evidence was secured that testis and ovary thrivewell in this intimate symbiosis and develop their hormone influ-ences independently of each other and without reciprocal hin-drance by this method. A specially interesting phenomenon is seen in the mammaeof these animals; the experiments actually showed that mam-mary hypertrophy with secretion of milk to an extent that sug-gests puerperal phenomena can be produced without corporalutea, without uterus (glande myometriale), and without thefruits of pregnancy—in a male organism. On the whole, the way has been prepared for experimentalwork with combined hormone effects through such experimentalhermaphroditism, and opens, to a certain extent, a new possi-bility of understanding abnormal sexual conditions and, per-haps, for the treatment of these. SAND 295 With reference to the question of antagonism* a num
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