ON THE EXTERNAL CONFORMATION. 9 

 wise drop into the car*. The metliod of trim- 

 ming the cars is by singeing the hair with a 

 candle, and as the ear itself is frequendy injm-ed 

 and rendered sore by this process, the horse in 

 consequence becomes shy of any thing ap- 

 proaching his head. 



The form of the mouth and lips clearly in- 

 dicates that the animal was intended to be guid- 

 ed by the bit, as there are no teeth in that 

 part to prevent the action of it against the 

 bars of the mouth. Lean lips are most sensible 

 of impression, and are therefore to be pre- 

 ferred . 



* The ears of all animals are defended in some pecu- 

 liar manner. The mole which lives under ground, and 

 whose ear is constantly exposed to the ingress of earthy 

 particles, has the faculty of closing that orifice by means 

 of a sphincter muscle. 



The human ear also secretes a fluid, which, being waxy 

 and cohesive, arrests the progress of insects and dust, and 

 prevents their entrance. 



As 



