ANGLEBEREIES. — WARTS. 213 



Catise. — The cause of Angleberries is a question wliicli 

 appears to be involved in a great deal of obscurity. Hereditary 

 predisposition is certainly one cause. I know a draught mare 

 which has had several foals, every one of which is or has 

 been aifected with ADgleberries, and that too in those locali- 

 ties of the skin corresponding to where the mare was 

 affected. 



They arise from the deeper seated tissues of the skin, and 

 the probability is, that these diseased or wart-like excrescences 

 arise from some peculiar derangement within the nutritive 

 vessels of the skin ; that is, instead of the nutritive vessels 

 producing skin, these growths are produced instead. 



MAKJiirEii OP THEIR Growth. — An ordinary observer would 

 readily conclude that growths of this kind essentially consist 

 of an extension of the skin. Such is not the fact. In numerous 

 instances they possess a short pedicle, or stalk from which the 

 tumour is suspended ; in other cases, they appear as if they 

 grew immediately out of the skin. Their attachment, however, 

 either to a stalk or to the skin, is mediate merely. Angle- 

 berries grow by imhition ; i.e., they do not receive their 

 nutritive blood from vessels passing direct out of the skin into 

 the tumour, but by imbition, or in a manner precisely similar 

 to what the membranes of the foetus receive blood from the 

 cotyledons of the uterus. 



Treatment. — In numerous instances when the Angle- 

 berries are small (or when large, if not suspended from a pedicle 

 or stalk) they may be easily separated from the skin by the 

 hand. The operator should firmly seize hold of their substance, 

 and pull them away by sheer force. AVhen the growth is 

 small, and this method is pursued, the Angleberries will 

 frequently slip out of the skin as a ripe nut slips from its 

 husk. The larger masses occasionally require a greater force 



