PLATE 11 
EXPLANATION OF FIGURES 
25 Stage 5. Transverse section (92) through processus maxillaris posterior, 
< 30. Note crossing of process from os maxillare to os palatinum 
26 Stage5. Transverse section (80) through concha and foramen epiphaniale, 
x 30. 
27 Stage 6. Transverse section (46) through incomplete zona annularis, 
x 30. 
28 Stage 5. Transverse section (37) through concha of Jacobson’s organ and 
fenestra superior nasi, X 30. 
240 
