42 BULLETIN OF THE LIVERPOOL MUSEUMS. 
superior longitudinal sinus. Across the middle line, and connecting the two 
perforations, is a transverse suture passing through the thickness of the bone. 
The perforations of the parietal bones are neither large nor equal in size. 
The right hole is somewhat triangular in shape, the apex pointing outwards. 
It measures 17 mm. transversely, and 8°5 mm. from before backwards. The 
left hole is smaller and rhomboidal in shape; it measures 11 mm. from side 
to side, and 7 mm. antero-posteriorly. The margins of both holes are 
bevelled, and are marked externally by faint striations. Internally, grooves 
for meningeal vessels can be traced to the perforations. 
No. 307 (Fig. 6) is a similar calvarium sawn through above the level of 
the lambdoidal suture. The coronal suture is well marked, and the sagittal 
suture is obliterated for 25 mm. in the neighbourhood of the parietal 
perforations. 
In this specimen the parietal holes communicate across the middle line, 
presenting an hour-glass form. They are symmetrical and almost circular. 
The narrow interval between them measures 3°75 mm. from before back- 

Fic. 5.—CanvariuM IN THE PatHonocicaL Musrum, Untversiry CoLLEce, 
LiIvERPOOL. 
wards. The lateral portions measure from before backwards 16 mm. on the 
right side, 17°75 mm. on the left side, and the total transverse diameter of 
the two holes together is (R. 21, I. 16) 37 mm. The margins of the perfora- 
tions are bevelled both externally and internally. Internally grooves 
corresponding to meningeal vessels run to the margin of the holes. The 
longitudinal sulcus deviates from the middle line so as to end in front of the 
left perforation. It begins again in the middle line behind the perforations. 
Two points of interest are noticeable in the above specimens: (1) the 
distortion and microcephaly of the cranium (I), and (2) the presence of 
parietal perforations. 
(1) The microcephalic character of the skull is not excessive, its capacity 
being 1225 ¢.c. The distortion consists in a greatly expanded vault superiorly 

