Plate VIII. — First Dissection of Pigeon. {Ad nat.) 





Tendon of Sub-clavius 

 passing to Dorsal Surface 

 of Humerus. 



Cjavicle. 



-^^^ 



/ Pectoralis 



^ Major. 



Head of 

 ____^^ Humerus. 



Pectoralis 

 Major Muscle. 



"-, iJ:au.ual Artery 

 Coraco- and Vein. 

 ""Hrachialis. 



-.Sub-clavius. 



Cut Edge of Origin of 

 Pectoralis Major. 



N Pubis. 



Cloaca. 



The skin and feathers are removed from the whole ventral surface. On the lef 

 of the pigeon the pectoralis major has been cut away from its origin along the carim 

 and posterior border of the sternum and thrown forwards. It is still seen attached. 



