68 
Sir Everard Home on corpora latea. 
Plate VIII. 
Contains six figures of the ovaria of the pig, in a virgin 
state. The external appearances of the natural size, the in- 
ternal magnified two diameters. 
Fig. 1. The external view of the ovarium at four months. 
Fig. 2. Internal view of the same. 
Fig. 3. External -view of the ovarium at nearly six months. 
Fig. 4. Internal view of the same, showing three incipient 
corpora lutea. 
Fig 5. External view at six months. 
Fig. 6. Internal view, showing six corporea lutea, nearly 
if not quite at the full size : the cavities filled with blood, as 
in Plate III. fig. 4, but no ova were detected. 
Plate IX. 
Contains six figures of ovaria of the pig; two in a virgin 
state, nearly six months old, in which the corpora lutea are 
in the act of bursting, and four of the sow after impregnation. 
Fig. 1. The external view of the ovarium, showing five 
inverted corpora lutea, spreading over the surface of the ova- 
rium, considerably beyond the orifices through which they 
protruded ; their inner surface is turned inside out, by which 
means the ova must have been completely discharged. No 
ova were detected. 
Fig. 2. Internal view of the same, showing four corpora 
lutea, and a great number of blood-vessels, which at that 
instant become very visible. Both figures are magnified two 
diameters. 
