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The articulation slopes downward and backward. The hypapophysial process (figs. 4, 5, 
6, 7, hy) is relatively more produced hemad than in Struthio, and descends vertically and 
slightly backward from the postaxial surface, thus adding to the length of the vertebra. 
AXIS, or SECOND, VERTEBRA (natural size). 

Aspects. 
Fig. 4, lateral; 5, preaxial; 6, postaxial ; 7, hemal (or ventral), 
The neural canal (figs. 5 & 6, ) is half the length of the entire vertebra, and its width 
is nearly one third of the breadth. Its area is a full ellipse with the long axis vertical, 
not transverse as in Struthio, 
