The last-mentioned point in squirrel-keeping, though of course the most important, is the absolute necessity for the most scrupulous cleanliness. In their native state, all animals are clean to a degree that might shame many a human being, and their instinctive sanitary customs are most praiseworthy. Even the pig, for instance, so often cited as an example of filthy habits, is when wild a model of cleanliness, and when domesticated absolutely revels in a thorough scrubbing with soap and hot water. The squirrel, in like manner, though perfectly sweet and clean in a wild state, is sure to be most offensive in captivity, unless the cage be carefully purified daily.

It is for this reason that we are so particular in recommending galvanized iron for the materials of the cage, avoiding wood altogether, as an evil odour readily penetrates wood, and can never be totally expelled. The duplicate tray and sleeping-box will prove to be of the greatest service in keeping the cage clean, and will save much trouble to the proprietor and annoyance to the inhabitant.

Should the squirrel-rearer prefer to employ wood in any part of the cage, he must be sure to bind with sheet-tin every edge and angle of the woodwork, as the little creature will nibble at the exposed edges so continually with its chisels of teeth, that it will speedily render the article useless.

Before closing these remarks, let us enjoin on every intending rearer of a pet to consider well before he undertakes the sole guardianship of any creature, and to assure himself that he will perform with punctuality and completeness the many little offices required by animals when taken from their natural state of existence, debarred from the exercise of their ordinary capacities, and rendered incapable of procuring food or keeping themselves in that state of cleanliness which is the ordinary condition of creatures in a state of nature.

He must make up his mind that the task will be somewhat troublesome, and will now and then interfere with contemplated projects; but at the same time he must rigidly determine that nothing shall cause him to forget, or induce him to omit, one single duty towards the little creature under his care. It is dumb, and has no language to declare its wants or proclaim its injuries; and this very dumbness ought to incite in every right-feeling heart a strong compassion for the helpless state in which the creature is placed, an unshakeable resolution to make it as happy as it can be under the circumstances.

It is possible to elevate the character of a kindly-treated pet to such a degree, that it will voluntarily forsake the society of its own kind for that of man, and even if granted its liberty, will refuse to avail itself of the gift, and return to the protection of the sheltering hand. By humane and sympathetic treatment a pet may be made happier than in its native state, and be saved many pangs of suffering by a kindly owner. All animals when wild have to pass through a sort of schooling, and get sadly knocked about and bullied by their elders before they attain maturity and strength to become bullies in their turn; but if reared in gracious captivity, they will escape the ordeal through which they must have passed.

Lastly, let the owner remember that his little favourite is wholly dependent on him for every necessary and comfort of life, and that it will be a piece of arrant cruelty—or, at all events, of inexcusable thoughtlessness—to permit the captive to feel the pangs of hunger or thirst, or to suffer the discomfort of an unclean home.