Plate LX\T 



Fig. 96. Reconstruction of the ectal surface of the oral epithehum of an 18 milU- 

 meter embr>'0. Princeton Collection, No. 21. Lateral view, X 45, 

 actual size. 



2. .\ngulus oris. 



6. Orbital inclusion. 



12. Parotid anlage. 



//. Orbitoparotid sprout. 



JO. Submaxillary anlage. 



jj. Anlage of the greater sublingual gland. 



44. Alveolingual region, 



84. First entodermal pouch. 



S~. Hypophysis. 



92. Trachea. 



pS. Esophagus. 



