18 



J. PARSONS SCHAEFFER 



2<) 



Figs. 22-27 Photomicrographs of sections through the nasolacrimal duct. 



Fig. 22 From a term child. Note that the connection between the nasolacri- 

 mal duct and the inferior nasal meatus is not yet established. X 3.4. 



Fig. 23 From a seven-month fetus. The connection between the nasolacri- 

 mal duct and the inferior nasal meatus is not established. X 6.1. 



