EXPLANATION OF PLATE IV. 



Digestive Apparatus of the Horse. 



13. Eectum. 



14. Anus. 



15. Left kidney and ureter. 



16. Bladder. 



17. Urethra. 



a. Hard palate. 



b. Tongue. 



c. Soft palate. 

 (/. Trachea. 



c. Pulmonary artery (divided). 

 /. Heart. 

 g. Posterior aorta. 



