( 71 ) 



456. Of the pofterior openings of the 

 nofe. 



4* 7. Defcription of the finus's which 



i i 



communicate with its internal ca- 

 vity, and their ufes. 



458. Of the lachrymal fac. 



459. Of the Membrana Schneidtriana, 

 or Pituitaria. 



Stru6ture, and extent of this 

 membrane. 



Of the mucus fecreted on its fur* 

 face. 



Remarks on the ufes of the pi- 

 tuitary membrane. 



460. Of the olfaftory nerves. 



Their pafiage through the cribri- 

 form lamella of the aethiiioid 

 bone, and distribution of them 

 over the pituitary membrane. 



461. Of the fenfe of fraeliing, 



462. Of nafal haemorrhageSj Ozcena, 

 Polypus, &c> 



Of 



