( 34 ) 



Of their peculiar office. 



205, Of the bronchial glands, 

 thetf ufe. 



206. Of the trachea, or afpera 

 tcria. 



}ts ftrulqre a fituatipn, and 



h Of RESPIRATION. 



Of the, Diaphragm^ and M,ufcl$s 

 employed in Rejpiratipn. 



. Situation, figure, and attach- 

 ments pf the diaphragm. 

 Of its cruMi and centrum tendi- 



nofum. 



Of the perforations of the dia- 

 phragm for the paffage of the 

 esophagus an.d vena $aya. 

 . Remarks on the alternate con- 

 tralion and relaxation, of this 

 important mufcle. 

 Hypothefes concerning the caufe 

 pf this phenomenon. 



. Of 



