15° 



DISCOVERY REPORTS 



pregnant cornu of the same animal the epithelium is rather crowded and cubical and the 

 glands are moderately numerous and much convoluted, but their epithelium is low 

 and cubical: they are ceasing to function. The blood vessels of this cornu are small 

 except at the base of the stroma, where they have a somewhat placental appearance. 



The foetus of no. 440 is only 1 mm. longer (10-3 cm.) but the epithelium of the sterile 

 cornu is subsiding, being low columnar, or even cubical in places. Glands are moderately 

 plentiful, with cubical epithelium in the central and low columnar in the peripheral 

 parts, and their secretion shows a marked diminution. Blood vessels are only moderately 

 numerous. The extra-placental part of the pregnant cornu resembles that of no. 436. 



TABLE XI 



Measurements referring to the genitalia of pregnant females 



* The pregnant cornu is marked with a " p " and the measurement, when recorded, refers to the extra-foetal 

 part. Material for the study of the non-pregnant cornu was secured from these animals. 



No. 439, with a foetus of 12-8 cm., shows a slightly more advanced stage in the 

 history of the sterile cornu. The epithelium is now cubical, and rather crowded, with a 

 height of 1 1 /* and nuclei which occupy a considerable proportion of the cell as in the 

 anoestrous uterus of no. 450. The glands, although fairly numerous in the section, are 

 nearly exhausted, with most of their epithelium reduced to a cubical form. There is a 

 considerable amount of secretion present. Blood vessels are numerous. 



No. 441, foetus 15-6 cm. The condition closely resembles that of the last uterus but 

 the glands, although moderately numerous, are farther advanced towards exhaustion. 

 Much secretion is still present. 



No. 510, twin foetuses of 16-5 cm. (approx.). Epithelium columnar but of moderate 

 height — 26 p. — not closely packed and cubical in places. Pycnotic nuclei are fairly 

 frequent. Glands are fairly numerous but short, being restricted by the large number 

 of blood vessels in the deeper regions of the stroma. The cells of the glands are low and 

 there is a decrease in the amount of secretion compared with no. 439. 



The foetus of no. 472 was 53-3 cm. in length. The epithelium of the sterile cornu is 



