On the other hand, part of the fascination of cats may be due to the fact that it is so difficult to come to an understanding with them.  A man talks to a horse or a dog as to an equal.  To a cat he has to be deferential as though it had some Sphinx-like quality that baffled him.  He cannot order a cat about with the certainty of being obeyed.  He cannot be sure that, if he speaks to it, it will even raise its eyes.  If it is perfectly comfortable, it will not.  A cat is obedient only when it is hungry or when it takes the fancy.  It may be a parasite, but it is never a servant.  The dog does your bidding, but you do the cat’s.  At the same time, the contrast between the cat and the dog has often been exaggerated by dog-lovers.  They tell you stories of dogs that remained with their dead masters, as though there were no fidelity in cats.  It was only the other day, however, that the newspapers gave an account of a cat that remained with the body of its murdered mistress in the most faithful tradition of the dogs.  I know, again, of cats that will go out for a walk with a human fellow-creature, as dogs do.  I have frequently seen a lady walking across Hampstead Heath with a cat in train.  When you go for a walk with a dog, however, the dog protects you:  when you go for a walk with a cat, you feel that you are protecting the cat.  It is strange that the cat should have imposed the myth of its helplessness on us.  It is an animal with an almost boundless capacity for self-help.  It can jump up walls.  It can climb trees.  It can run, as the proverb says, like “greased lightning.”  It is armed like an African chief.  Yet it has contrived to make itself a pampered pet, so that we are alarmed if it attempts to follow us out of the gate into a world of dogs, and only feel happy when it is purring—­rolling on its back and purring as we rub its Adam’s apple—­by the fireside.  There is nothing that gives a greater sense of comfort than the purring of a cat.  It is the most flattering music in nature.  One feels, as one listens, like a humble lover in a bad novel, who says:  “You do, then, like me—­a little—­after all?” The fact that a cat is not utterly miserable in our presence always comes with the freshness and delight of a surprise.  The happiness of a crowing baby, newly introduced to us, may be still more flattering, but a cat will get round people who cannot tolerate babies.

It is all the more to be wondered at that a cat, which is such a master of this conversational sort of music, should ever attempt any other.  There never was an animal less fit to be a singer.  Someone—­was it Cowper?—–­has said that there are no really ugly voices in nature, and that he could imagine that there was something to be said even for the donkey’s bray.  I should have thought that the beautiful voices in nature were few, and that most of them could be defended only on the ground of some pleasant association.  Humanity, at least, has been unanimous in its condemnation of the cat