av 
There are, as a matter, of fact, only the purulent and the 
mucouspurulent metritis which can be mistaken for preg- 
nancy. Under these pathological conditions, however, the 
uterus is generally thickwalled, and there is a discharge from 
the vagina. Only once I had difficulty in making the proper 
diagnosis in a pregnancy of three months. The uterus was 
situated far from the abdominal cavity, so that it could not 
be completely made out by the hand, the walls were thick- 
ened, and there was a fluctuation in the apex of the right 
horn; the cervix was swollen, injected, a little secernating, 
and so wide open that I easily could go in with a large ca- 
theter. In spite of intense treatment, as repeated douching, 
the cow did not abort until twenty-eight days later. 
A second time I misjudged a pregnancy of three ar 
half months, and had the cow slaughtered. I had treate: 
cow in January, April and June, first for a septic met 
and later for an enlargement of the uterus. In July the . 
came in heat, and in October I examined her again. I fot 
the cervix unchanged, the uterus enlarged, but did not thi, 
of pregnancy. 
In the fifth month of pregnancy the uterus can be so 
down in the abdominal cavity that it is impossible to rea 
it with the hand. One feels only a more or less heavy cor 
which goes from the cervix towards the adbominal cavity. 
Pregnancies in the left horn, torsio uteri in an early stage, 
death or mummification of the fetus are rare and easily 
recognized. 
It is always important to make the diagnosis: pregnant 
or not pregnant, and in the latter case, to determine what is 
the pathological condition. The exact time of pregnancy is 
of far less importance in the daily routine. Besides, the 
time of the last estrum is a good enough indication for that. 
Poulsen, however, pays much attention to this point, and 
gives a lot of indications for the exact determination of the 
time the pregnancy has progressed to. He gives data for 
8-10, 10-12, 14-16, 18-20 weeks, and then month by month. 
