Sir Everard Home on corpora lutea. 67 
Fig. 6. Internal view of the same, to show how small the 
remains of the corpora lutea had become at that age. The 
large cyst contained coagulated lymph and serum. 
Plate VI. 
Contains four figures of the ovaria of the cow. The ex- 
ternal appearances of the natural size, the internal magnified 
two diameters. 
Fig. 1. The ovarium of a calf, two months old. 
Fig. 2. An internal view of the same. 
Fig. 3. External view of the unimpregnated ovarium of 
a cow, 14 days after her being with calf. 
Fig. 4. Internal view of the same, representing the com- 
mencement of a corpus luteum, and showing that the cells 
in the ovarium which before puberty are met with in a globular 
form, become gradually of an oval and irregular shape as the 
ovarium increases in size. 
Plate VII. 
Contains three figures of the ovarium of a cow with calf. 
The external appearance is of the natural size ; and the inter- 
nal is magnified two diameters. 
Fig. 1. External view of the corresponding ovarium. 
Fig. 2. Internal view of the same, showing the structure 
of the corpus luteum, which in this animal is very large, and 
is evidently made up of convolutions more nearly resembling 
those of the brain, than of any other organ. 
Fig. 3. A transverse section of the corpus luteum. 
