TUMORS. 



319 



buccal mucous memlu-anc, and arms of dogs. The skin of the 

 legs and lips are the common locations in the horse. The lumen 

 of the oesophagus of the ox mav be almost occluded In- the pres- 

 sence of masses of papillomata. In a horse used for" dissecting 

 the cardio-pylonc junction was found to he a mass of these 

 tumors. I he mucins mem1)rane of the bladder of the o.x, sheep 



iiiwni^ I*a]tilloiiiatt)^^iH uf itiucous nunilirano 

 nt ll])S nt a hursi-. 



and hog is sometimes studded with ])apilli imata. These tunidrs 

 ha-\-e also been ribser\-ed upon the crmibs and wattles of fowls. 

 The}' sometimes occur in horses' feet but are usually necnjtic 

 and do not ha\-e the apjjearance of papillomata. 



These tumors may be hard, i. e., covered over hv stratified 

 squamous epitlielium that has become cornified. This varietv is 



