FIGURES 180, 181 AND 182 



180 Same, slide X, section 28. 



181 Same, slide X, section 26. 



182 Same, slide X, section 23. 



1 Sympathetic nerve. 



8 Oesophagus. 



9 Trachea. 



33 Left subclavian artery. 



38 Confluence of broncho-mediastinal duct and preazygos segment of 

 thoracic duct. 



40 Innominate vein. 



41 Vertebral artery. 



43 Costo-cervical artery. 



44 Costo-cervical vein. 



