308 WINDGALL OF THE HEEL. 



the cannon to the inner side of the leg. I cannot say how long 

 the tumour has existed, having but recently discovered it. It is 

 certainly some disfigurement or " blemish" to the mare; but, be- 

 yond that, is not of the slightest consequence. 



WiNDGALL OF THE HEEL. 



Of all, this seems to be the rarest form of windgall. Indeed, it 

 is one which, so far as my reading has gone, remains up to this 

 time unrecorded. On this account, instead of giving any descrip- 

 tion of it in general terms, I prefer narrating the cases I have 

 registered. 



Case I. — On the 13th January, 1844, a troop horse was brought 

 to me on account of lameness in the off fore limb. On the pre- 

 vious day the horse had been sharply ridden in escorting her Ma- 

 jesty from Windsor to Egham, and there was no doubt whatever 

 that such had occasioned his lameness. There was heat about the 

 fetlock joint, and fulness in the situation of the bursse at the back 

 of it, and this heat extended down the pastern to the foot. The 

 shoe was removed and left off for a couple of days, and the usual 

 routine of bath and bandage and physic was adopted during the 

 while. On the third day the shoe was replaced. Still the animal 

 went lame. And now, on another examination of the leg, puffy 

 tumours were discovered, one on either side, immediately beneath 

 the sesamoid bones, reaching downwards and forwards to the ex- 

 tent of a couple of inches in the direction of the lateral processes 

 sent off from the suspensory ligament. There was also a third puffy 

 tumour, intermediate in situation between the lateral swellings, 

 being an enlargement of the bursa occupying the interval left be- 

 tween the divisions of the perforatus tendon for the issue of the 

 perforans tendon. Between this and the bursa? at the sides 

 there is evidently free communication ; for pressure upon the mid- 

 dle bursa, below, immediately empties it, while it distends the 

 bursae above ; and pressure upon them reverses this effect. Tlie 

 ordinary discutient lotion, with bandaging and pressure upon the 

 tumours having been tried for several days without benefit, the ace- 

 tum cantharidum was applied to them. This caused vesication, 



