THE SINUS MAXILLARIS 



119 



Cel.eth-.post 



is. orb. sup. 



C.irvt. 



FIG. 44. SPECIMEN FIFTEEN YEARS AND FIVE MONTHS OLD. (Series D, No. 



75.) 



Coronal section cut 44 mm. posterior to nasion, showing posterior portions 

 of the conchse and the posterior walls of maxillary sinuses. Fis.orb.sup., 

 Fissura orbitalis superior; S.max., sinus maxillaris; Ton.phar., tonsilla pharyn- 

 gea; C.inf., concha inferior; C.med., concha media; C.sup., concha superior; 

 C.supr.I, concha suprema I. 



