CYCLIC CHANGES IN UTERUS AND OVARIES. 25 



mitoses. Vacuoles were however present in small cuboidal 

 cylindricall cells. 



(6) No. 789. Seven days, twelve and a half hours after copu- 

 lation extirpate two corpora lutea in right, one corpus luteum in left 

 ovary. Examination ten days later shows one pregnancy in right, 

 none in left horn. Both ovaries showed young corpora lutea in 

 which the central cavity had been partly or entirely filled by con- 

 nective tissue. In one of the young corpora lutea an ovum had 

 been retained. There were small and medium-sized good follicles 

 and many follicles in connective tissue atresia. Ovulation had 

 taken place about four to five days previously, about thirteen 

 days after the copulation. The left uterus showed cuboidal 

 epithelium of surface and low epithelium of glands, with only 

 very few mitoses in the surface epithelium ; there were occasion- 

 ally some small vacuoles in the epithelium. The connective 

 tissue was edematous. The blood vessels contained many 

 leucocytes and occasionally a mitosis can be seen in an endothelial 

 cell. Here again the typical uterine changes are absent. 



(7) No. 989. Six days, eighteen hours, after copulation excise 

 one corpus luteum in left ovary, excise the entire right ovary 

 without corpora lutea. Examination eleven days later showed one 

 pregnancy in the left horn of the uterus and a young corpus luteum 

 in the left ovary. The center of the corpus luteum was filled with 

 loose connective tissue. There were small and small-medium 

 sized good follicles and many follicles in a medium and late stage 

 of connective tissue atresia. Rupture had taken place about 

 three to four days previously (about fourteen to fifteen days 

 after copulation). The right uterus showed cuboidal-cylindrical 

 epithelium which at some places was somewhat higher. It 

 contained some vacuoles with chromatic material and very few 

 mitoses; the glands were cuboidal-cylindrical and without mi- 

 toses. The connective tissue is fibrillar, without mitoses. Cyclic 

 changes are absent. 



(8) No. 988. Five days, nineteen and a half hours after copu- 

 lation excise one corpus luteum in right ovary and extirpate the 

 whole left ovary with two corpora lutea. Examination ten days 

 later. One pregnancy in right horn of uterus.' In the right ovary 

 there were young corpora lutea in which the central cavity had 



