I believe that he invariably makes use of the four senses

I believe that he invariably makes use of the four senses

I believe that he invariably makes use of the four senses, seeing, hearing, smelling and feeling, in all of his examinations, of which the sense of feeling is, perhaps, the most important. And I think that in the experiment with the robe, his gradual approach and final touch with his nose was as much for the purpose of feeling, as anything else, his sense of smell being so keen, that it would not be necessary for him to touch his nose against anything in order to get the proper scent; for it is said that a horse can smell a man the distance of a mile. And, if the scent of the robe was all that was necessary, he could get that several rods off. But, we know from experience, that if a horse sees and smells a robe a short distance from him, he is very much frightened, (unless he is used to it,) until he touches or feels it with his nose; which is a positive proof that feeling is the controlling sense in this case.

Fonte: Tamming Horses