TUMOUKS OF THE HEAKT. 381 



apex, exposing all the right ventricle and part of the right 

 auricle, a polypus comes into view, exactly resembling in 

 form and consistence those found on mucous surfaces, in the 

 uterus, vagina, and the nares. This polypus (Fig. 117) is 

 attached by a rather slender pedicle, to the internal walls of 

 the right auricle next the appendix, and nearly fills the cavity 

 of the right ventricle, dragging down the wall of the auricle, 

 to which it is attached, to the level 'of the ring of the 

 tricuspid valve. The polypus is of a somewhat circular 

 shape, and its dimensions before immersion in spirit were as 

 follows : 



Greatest circumference from one side of 

 pedicle to the other, going over the 



largest part of tumour . . . 13'39 inches. 



Circumference of pedicle . . 2 '44 



Circumference at the thickest part of 



tumour 917 



Greatest length 5'39 



Greatest width in the centre . . . 3*93 



" This polypus was very firm, elastic, and almost appeared 

 to contain fluid; none was, however, found on section. 

 Polypi that have reached so advanced a period of organiza- 

 tion are of extreme rarity, and my search for cases of them 

 in periodicals and in works on diseases of the heart, has been 

 Very unproductive." 



In the sixteenth volume of the Veterinarian, Mr Kay, of 

 Pontefract, describes a singular case which occurred in a 

 quey thirteen months old, and in which, from the irregularity 

 of the blood's flow, Mr Kay suspected disease of the heart. 

 The animal lived several days, and, after death, a polypus 

 was found adhering to the wall of the right auricle, and 



