FIGURES 180, 181 AND 182 



1<S() Same, slide X, section 28. 

 181 Same, slide X, section 26. 

 IS'i Same, slide X, section 23. 



1 Sympathetic nerve. 



8 Oesophagus. 



9 Trachea. 



33 Left subclavian arterj'. 



38 Confluence of hroncho-mediastinal duct and preazygos segment of 



thoracic duct. 



4U Innominate vein. 



41 Vertebral artery. 



43 C!ost()-cervical artery. 



44 C'osti)-('(M-vical x-cin. 



