EXPERIMENT STATION REPORTS. 289 



KMght ovary two and one Jiali' ceLitinieleis in length and contains a cyst 

 abont the size of a hazel nnt; lelt ovaiy, abont (wo centimeters in length 

 and shows a cicatrix extending around its dorsal border, transverse to the 

 lono- axis of the ovarv. 



B. coli commnnior was obtisined from cyslir ovary. Cultures from 

 uterus were negative. 



Histological examination: The mucosa of the posterior cervix in 

 places is^ covered by a stratified epithelium varying- in thickness from 

 sixty-five to one hundred thirty microns. The superficial cells show 

 marked mucoid changes. Cj'st-like structures averaging about twelnty- 

 five microns in diameter, containing a mucoid material are observed in the 

 epithelium. A part of the mucosa of the posterior cervix is covered by a 

 simple epithelium twenty to twenty-five microns higli. Here there are 

 numerous tubular depressions simulating wide, shallow glands. Prac- 

 tically all of the cells lining these tubules show mucoid changes. 



The mucosa of the middle cervix shows the same extensive mucoid 

 changes in the epithelium. 



The structure of the wall of the uterine body is unlike that of the 

 normal body but is similar to that of the anterior end of the cervix. 

 At only one point is there seen a group of uterine giauds (about forty 

 in number) in the deeper portion of the stroma. All other portions show 

 an absence of distinct uterine glands. The epithelium is arrauged 

 similarly to that of the anterior cervix and shows considerable mucoid 

 changes though not as extensive as that of the cervix. The uterine wall 

 is not differentiated into a distinct mucous membrane and a muscular 

 coat but the muscularis blends with the stroma of the mucosa as is the 

 case in the cervix. 



The mucosa of the horns averages about three and one-half millimeters 

 thick and is covered b}' an epithelium sixteen microns high. There are 

 no epithelial defects. The tissue of the cotyledons extends from one to 

 one and three-tenths millimeters into the stroma. 



In the gland mucosa tlie subepithelial tissue is only very slightly more 

 cellular and apparenthr more reticular than the more deeply lying stroma. 

 There are about seventy-live cross cut gland tubuli per square millimeter, 

 varying in diameter from forty to eighty microns. In a great many of 

 tlie glands the epithelium is surrounded by a clear zone as if the gland- 

 ular epithelium had contracted away from the periglandular tissue. For 

 example, glands fifty microns in diameter are in a clear zone seventy 

 five microns in diameter. A few goblet cells are present and numerous 

 small round cells are seen in the lumen of some of the gland tubules. 



Case DSC) was born Mav 28th, 191G. On November 9, 1017, blood was 

 positive to abortion test. On March 31, 1918, sue gave birth to an ap- 

 parently normal calf after a prolonged labor. A few days after this a 

 \aginal discharge v^'as observed and examination demonstrated consid- 

 erable pus in uterus. Uterus was douched daily for three weeks with a 

 weak solution of a coal tar disinfectant. During the last week of treat- 

 ment an ulcerated cervix was treated by swabbing at -intervals of two 

 days with .50 per cent tincture of iodine in glycerine, four treatments 

 being given. The animal apparently recovered. At the beginning of this 

 treatment streptococcus pyogenes and Bacillus pyogenes were isolated 

 from the uterus. During the latter part of July endometritis again 

 37 



