Guinea pigs or cavies are similar to rabbits in their requirements. The chief difference is that guinea pigs cannot stand excessive cold and will not do well if kept outside in severe winter weather. Rabbits and cavies will eat almost anything and eat constantly. The usual feed is hay, clover, wheat, corn, carrots, turnips, cabbage, lettuce, celery, potato parings, or any green food or grains. Cavies are especially fond of bread and milk. The three classes of cavies are Peruvians or Angoras, with long silky hair; Abyssinians, with coarse hair in tufts or rosettes, and the common guinea pig or smooth, cavy. A pair of cavies will cost about two dollars. A dry airy cellar is a good place to keep them as they are cleanly in their habits. Neither cavies nor rabbits are especially intelligent but they do learn to know their master or at least the one who feeds them. Pet rats and mice are in the same class as rabbits but they should always have a coop that they will not gnaw out of. There is even a mouse club. It is in Europe and has over a thousand members. An interesting example of skill in breeding is seen in Dutch belted varieties of cattle, in hogs, rabbits, cavies and mice. In all of these animals the same markings have been bred by careful crossing and selection. In all lines of “fancy” it is important to stick to a few varieties. We shall never make much of a success if we have half a dozen kinds of chickens, pigeons or rabbits. By far the most important “fancy” is with chickens, but this subject will be considered in the chapter on the care of poultry. Among other pets are tame squirrels, turtles, snakes, lizards and toads. A tame gray squirrel makes a splendid pet. After a while we can give our squirrel full liberty and find him back in his nest at night. I once had a tame owl but I found that because of his habit of flying and feeding at night he was a very stupid pet. Besides that his powerful beak and sharp claws or talons were dangerous. I also once had a pair of flying squirrels but they also only appear at night and were consequently uninteresting in the daytime. We must always study the natural habits of our pets and try to give them coops and food as much like nature as possible. My flying squirrels were given soft feed in place of the usual hard-shelled nuts. Consequently their teeth grew so long that they were a positive deformity. We finally liberated them but before they could get to a place of safety one of them was caught and killed by a chicken. The poor little creature was so fat from overfeeding and lack of exercise that he had all but lost the power of using his legs.