FIGURES 177, 178 AND 179 



177 Same, section 5. 



178 Same, section 2. 



179 Same, slide IX, section 32. 



1 Sympathetic nerve. 



8 Oesophagus. 



9 Trachea. 



■io Thoracic duct, preazyf>;os sejiinent. 



37 Broncho-mediastinal duct. 



38 Confluence of broncho-mediastinal duct and pr(\nzy}>os segment of 



thoracic (hict. 



40 Innominate vein. 



41 Vertebral artery. 

 44 Costo-cervical vein. 



